Need to add an appointment in the iPhone's Calendar that's months (or years) in the future? Tap the All-day slider, and you can then select a date months or years ahead very quickly. When you've got the date selected, tap the All-day slider agai, and Calendar will allow you to set the HH:MM for the appointment, retaining the date you've selected in All-day mode.
I live in Arizona and I occasionally get robocalls from one of the radio stations nearby that hosts a show by Alice Cooper. In the robocalls, Alice Cooper reads the message. To safely ignore these calls, I took the calling number and added it to my contacts. Now I know when I can ignore that number (and it does look kind of cool to see that Alice Cooper just called).
For general spammy calls, I've started using the 800Notes site to find out who called me. I also add the calling number to a contact called Scam Artist. Not sure how many numbers a contact will hold, but seems to work quite well as I get the same four or five numbers calling all the time.
Not quite as great as a telemarketing service/scam filter, but at least you know right away that you can ignore the call.
[robg adds:This previous hint explained another way to ignore repeated calls from the same number, by assigning them a silent ringtone.]
I have used this many times when applications freeze, and neither the Home button nor the Lock button have any effect.
If this happens, try double-tapping the Home button to invoke the Home button shortcut. My double-tap shortcut is for the iPod, but this also works with Phone favorites. By starting the Phone app, or the iPod app, the iPhone kills the hung application.
If you have a jailbroken iPhone, and want to save the Shazam tagged songs list, you have to connect to your iPhone via ssh, then go to this path: /private » var » mobile » Applications » long_string_of_characters » Documents. Replace long_string_of_characters with your phone's unique string, then download the file clarusx6.sqlite.
Next, download sqlitebrowser for OS X, open the file you just downloaded from your iPhone, and the game is done.
[robg adds: I believe the 'sqlitebrowser' referred to above is this program, but I'm not positive.]
More of a workaround than a hint, and a pretty obvious one (once I'd thought about it). If you need to email a contact's details to a friend or colleague, you can take a screen shot of the relevant details, then email the copy in your camera roll to the friend or colleague.
You can't get all the info on one page, so you might end up with two or three screenshots, but this could be handy if you need to send your Mum the address of your wife's parents.
Still, for a communication device, you'd have thought Apple would have had a nicer way of doing this, and via SMS, too.
A few days ago my iPhone started reporting a bogus unread SMS message, and there was no way to get rid of it -- I tried to re-read all SMS (tedious task) to no avail. My iPhone (firmware 2.2) is jailbroken, so I was able to solve the problem in this manner. Open a terminal on the iPhone, either directly with the Terminal app or via ssh from another machine, then enter this command:
$ cd /private/var/mobile/Library/SMS
In this directory you will find the file sms.db; now perform the following commands:
Your iPhone will reboot and the unread SMS count will now be correct. Note: it is better if you sign off from your cellular network before you attempt these steps, in case a new SMS arrives while you are editing the database.
I have noticed recently that the iPhone will not try to automatically correct your typing if you capitalize the first letter of the word that you are typing. So if you are typing the name of a road, for instance, it's worth making the effort to capitalize the initial letter, so it doesn't get "corrected" later on.
Note, however, that the iPhone will still correct the capitalized first word of a sentence, as it should be capitalized anyway.
Being able to control your iPhone using VNC means:
Full keyboard support on your iPhone -- type fast, save drafts, save notes, copy-paste from computer to iPhone (in some apps, like Notes)
Access iPhone from any computer in any room on your local network
Be as lazy as possible; avoid reaching or moving to check text messages
Remote control iPhone's iPod when connected to your home stereo
I suppose you could port forward and access your phone from anywhere, but then, why wouldn't you be with your phone?
Installation is a breeze; open Cydia, search for and install Veency (thanks to author Jay "Saurik" Freeman), restart Springboard. Go into Settings, Wifi, click the blue arrow next to your network, note your IP address. To connect to your iPhone, you'll need a VNC client like the free Chicken of the VNC; the Mac's Screen Sharing app doesn't work for some reason.
In CVNC, setup a Connection Profile for your iPhone; make sure to map the middle and right click, also set Color to "thousands." Connect to your iPhone's IP address using the Connection Profile you just created (go to File » Open, instead of File » New to use a Connection Profile). Once connected, you click and drag just like using your finger (which is represented by a small cursor). Left click for clicking, middle click to lock screen (you can even drag-to-unlock), right click for home button.
You can set the middle button in Chicken of the VNC -- I use a double click of the command key. You can even "flick" the screen up and down if you time your click-drag-unclick properly, and double click the home button on the lock screen for your iPod control (or whatever you have double-click set to in Settings). If you need more details (including screenshots), you can find them in this blog post.
Do you have a network-enabled scanner or multifunction printer? (I have an HP Officejet 7410 AIO.) You might find you can use the device's web interface (try http://220.127.116.11, where 18.104.22.168 is the IP address of your device) to scan documents using the Web interface. Log on with Safari app on your iPhone or iPod Touch (make sure you disable pop-ups in Settings app, as my AIO scans documents into a pop-up and common pop-up blockers do not like this).
When your image is scanned in, hold your finger on the image, and save the image. In a minute, your newly scanned photo/document will be in your camera roll until you can get your device to a computer to offload the image. Just another step closer to having an iPhone/iTouch being a complete computer replacement!
The temperatures outside are dropping rapidly, and many of you will find your hands wrapped in thick gloves. And then suddenly, an important phone call drops in. Unless you've plugged in your earphones, or connected your Bluetooth headset to the iPhone, it will take quite a long time to get your hands free to slide the button to speak. So how to answer this important call quickly?
There are "alternative" ways to interact with your iPhone without having to uncover your fingers. For basic actions such as accepting a phone call or unlocking it to read a text message, you can use either your nose or, for some more precise gestures, your tongue. I know this isn't the most elegant way to operate your beloved iPhone, but in some cases, it needs to be quick and dirty...
For those of you finding this disgusting, but still don't want to run around with cold fingers, consider buying some fancy iPhone-enabled Dots Gloves. And for true lovers, you can act as if you were kissing your iPhone to speak to your friend!
[robg adds: I, um, haven't tested certain aspects of this one...and I have no intention of doing so! Still, the issue of winter + fingers in gloves + iPhone interaction is a relevant one for much of the world. In addition to the Dots Gloves linked above, Google found a number of interesting solutions to the problem, including gloves with flip-back tips, gloves without thumb or first finger tips, and Tavo gloves (warning: Flash-only site) that use a different material on the thumb and forefinger that apparently allows touchscreen interaction. If anyone has experience with iPhone-enabled gloves, feel free to post your thoughts...]