I looked through the manual, but didn't see this documented. We all know that you can scroll a web page on the iPhone by dragging, and you can zoom in/out by double-tapping. What I discovered is that if you first double-tap on a column (like those found on many news pages or standard web pages), the screen will zoom in to fit the whole column (that part, most people probably already know). From that point, though, you can double-tap in the lower ¼ of the screen to scroll down a nice amount for reading. Double-tapping in the upper ¼ of the screen will scroll up.
I find that when reading some pages, it's easier to scroll in this manner, because if I try to drag-scroll, I inevitably end up dragging the column left or right, and messing up my margins. This does take a little bit of experimentation to get right, but it's definitely faster once you've gotten the hang of it.
I noticed that iTunes kept locking up when I was syncing my iPhone -- to the point where I had to physically reset the iPhone (I have my iPhone set to sync everything). After some digging, I remembered that I had placed Address Book, iCal, Safari, and Mail in a subdirectory of the Applications folder. What happened is that during the sync process, iTunes was looking for the Address Book, but it couldn't find it where it expected it to be, which seems to then cause the iPhone to crash.
Once I put all the applications back in their original install locations (the top level in the Applications folder), the sync process worked without hanging.
As I wrote on my weblog, there's a bug when you create new events on your iPhone and synchronize them back to your Mac. They'll end up in the wrong calendar if you sync "All calendars." I work around the bug by synching "Selected calendars," but selecting all of them.
If your daily downloads of podcasts fits on your iPhone, you don't need this tip. For a 1.0 release, the iPhone has a lot of features and may very well be "the best iPod ever," but it's still missing some functionality that existing iPods have.
One major oversight is the lack of video playlists. On an iPod with video, you can create a playlist to hold recent podcasts, and it will contain both audio and video podcasts you have downloaded. They will all sync to the iPod just fine, and if you go in to Music » Playlists to access those playlists, the iPod will play the audio of all files inside. Allowing "video" files to show up in the audio-only playlist may be a bug, but this "feature" allows you to listen to audio of videos you have without needing to power up the screen (for when you might want to just listen to a vidcast or TV show audio). The bonus is that you can also go in to Videos » Playlist, and then the list will play audio files, but switch on the video when it his a video file.
That might be a useful tip on its own, but on the iPhone, this does not work. On the iPhone, you get a Playlists section, but it contains only audio files. Thus, if you have a playlist called Recent Podcasts that contains both audio and video files on iTunes, it syncs fine and works on an iPod with video, but it will only sync the audio files on an iPhone. (This may be a bug fix or feature removal, depending on how you see it.)
Even if the playlist contained tons of vidcasts, they won't sync to the iPhone automatically. You have to specifically enable those podcasts using the rules of the Podcast tab of iTunes when connected to the iPhone, which is rather limited. (ie, "all unplayed," "recent of specific podcasts," and so on). So if you have the Leo Laporte podcast (which can generate six or more podcasts in a day), using "3 most recent" will miss some of those, and give you extras of monthly/weekly podcasts (which your iPhone may not have room for).
There's no way to sync notes taken on the iPhone Notes app to the Mac. Bummer! So here's a tip to keep a list of memos that will sync over the network to your Mac and your iPhone.
Simply create an email message on your iPhone, or in your IMAP email account on your Mac. Type in a subject, and write your memo in the body of the email message. Don't send it., though. Instead, save the message, and your Drafts folder becomes a makeshift notepad that updates the content whether you make changes on your iPhone or on your Mac.
[robg adds: As an alternative, Macworld's Jonathan Seff offers up using a dummy address book entry to store syncable notes. The comments to his entry offer some additional solutions. The real solution, of course, is for the iPhone notes to sync to your Mac via a special folder (or some mechanism). Hopefully in iPhone 1.1....]
The dock appears to hold the iPhone at just about the right angle for the antenna to be polarized the same way the signal off the tower is. I tried the worst room in my house, which usually shows one to two bars of strength. With the iPhone in the dock (whether connected to a wire or computer or not), it went to five bars. Next I took the iPhone out of the dock and propped it up with a shampoo bottle at the same angle. Same result - five bars. Then I put the iPhone back in the dock, but laid it down in the same location. Two bars.
Then I put it back in the dock (five bars), but I touched the metal case with my fingers (two bars). So the hot setup is to use the dock and speakerphone (or buds) in marginal areas. A case helps with the attenuation problem, too, as does gripping the phone near the top while talking with it next to your ear.
[robg adds: I haven't tested this particular solution, but have noticed that the phone's orientation seems to make quite a difference, both with the AT&T network and with my home's wireless network.]
If you have your own install of WordPress, it's easy to make an iPhone-optimized theme for your blog -- without changing anything for non-iPhone users. This info might be useful for anyone building web sites with other tools as well. Here are the quickie instructions:
Make a unique stylesheet, styles-iphone.css, ditching the stuff you don't need, and setting div widths to 320.
Use the whole "pad" of your finger (or thumb) when typing, not just the tip. In other words, position your finger as if you were trying to leave a "criminal" fingerprint on the key you are selecting. Tap, don't press, however.
Also, for "problem" keys (mine seem to be O and P), keep your finger on those keys for a tiny extra fraction of a second. If the zoom reveals you hit the wrong one, don't lift and try again -- just roll your finger left or right to grab the correct key.
These two tips made a huge difference in my accuracy and speed.
I just got an 8GB iPhone and was loving the iCal syncing (among other things). However, I then noticed that the darn thing was syncing with a seemingly random calendar and not the one I originally chose. I proceeded to change the preferred calendar in iTunes when I noticed to my dismay that it reverted back to the one iTunes chose for me! To make a long story short, there seems to be a bug (go figure) in iPhone syncing.
I noticed that the calendar iTunes chose happens to be at the bottom of my list (in iCal), so I just reordered my iCal calendars so that the one I wanted my iPhone to sync to is on the bottom. Problem solved (until Apple gets around to actually fixing this bug).
[robg adds: I haven't had this problem with my iPhone; the chosen calendar seems to 'stick' just fine. In an email exchange with the author, the problem may be caused by the fact that most of his calendar names begin with an "@," which is related to his use of iGTD.]