Does your iPhone constantly defer to 3G or 4G, even when you are standing right next to your Wi-Fi router?
I recently discovered that the two iPhones (a 3GS and a 4S) in my household were both deferring to using 3G and 4G instead of using Wi-Fi. All the other devices (two laptops, one iPad 2, and two Direct TV boxes) were doing just fine.
I looked all through many tutorials online and tried a number of weird tricks and resets and was getting pretty flustered about it. Then I looked into why it would be affecting out phones and not our other devices and found this:
Pre-iPhone 5 models do NOT support the newer 5GHz Wi-Fi spectrum. All the other devices in my house, including the iPad2, DO support the 5GHz Wi-Fi spectrum. This means that the only devices using the 2.4GHz range on my router were the two iPhones.
I logged into my router's control panel to have a look at the 2.4GHz settings. At first I was considering changing its security settings from WPA2 to WPA Enterprise, but first I decide to try something simpler. I changed the 2.4GHz channel setting from "Auto" to a dedicated channel, and everything was back to normal.
I wish I could provide an explanation for why this worked. It seems there are many of people having this issue. I hope this helps you if you are.
[kirkmc adds: It is entirely possible that there was interference from other people's routers on the channel you were using. By changing the channel, you found one that is less encumbered. But this is certainly something to try if you are having Wi-Fi connection problems, and not just with an iPhone
5GHz is not really "new," it's just not been supported by mobile devices for very long. I've had a 5GHz network in my home for a few years, even though, for a long time, only my Macs would connect to it.]
It is now possible to have Find My Friends app send notifications to e-mail addresses.
I like the Find My Friends app, which allows you to see where your friends are located (if they allow you to). With the latest version, in iOS 6, you now have the option to be notified when a friend leaves or arrives at a location.
But you can also set up notifications for yourself, to notify others where you are currently, as well as when you leave or arrive at a location. Additionally, you can send an e-mail automatically when you arrive or leave a location, or send an e-mail showing someone where you are currently
To do this, open Find My Friends, tap Me, then Notify. You can now tap either Immediately, to send an e-mail right away, or At a Location, to send an e-mail when you get to that location. Tap on the To field to enter an e-mail address. If you choose an Apple ID for a friend who has the Find My Friends app, they'll get a notification on their iOS device. But if you enter a different e-mail address - such as one for someone who doesn't have the app, or an iPhone - an e-mail message will be sent. This is nicely formatted, and contains a small map (using Google maps) showing your location.
So if you need to tell someone where you are, and they don't have an iOS device or the Find My Friends app, this e-mail can be a big help.
With iOS 6, you can choose to limit (though not entirely disable) ad tracking, by digging deep into settings. Go to Settings > General > About, then scroll down to the bottom and top on Advertising, then toggle Limit Ad Tracking to On.
There's a tiny Learn More link at the bottom of that screen, which explains that this uses a "non-permanent, non-personal, device identifier, that apps will use to give you more control over advertisers' ability to use tracking methods."
[kirkmc adds: I'm not entirely sure how effective it will be, as it's still in its infancy. But it can't hurt.]
Before Safari 6, you could navigate to a URL with having to type ".com". The same can be done in Safari 6 with one extra keystroke.
Entering "apple" in the location bar of Safari 6 will yield you Google search results for those terms. However, including a trailing slash will cause Safari to add the .com TLD to a logical location in the address, and take you to that URL. So, "apple/" will take you to apple.com.
[kirkmc adds: This is fine, if you're trying to get to .com sites. If you're in a country and want to get to local sites, it won't help you. It's worth noting that you can enter any number of slashes and still get this to work.]
Update: As per a comment below, here's how to make it work when you type a /. For example, if you type "apple/ipod/" Safari will go to www.apple.com/ipod, if you do the following. Go to System Preferences > Network, click on Advanced, then DNS. In the Search Domains section, click on + and add .com. Click on OK, then on Apply.
With iOS 6, podcasts no longer show up in the Music app, if you have installed the Podcasts app. But if you like to make playlists of podcasts, the Podcasts app doesn't pick these up. If you want to get your podcasts back to the Music app, and be able to access playlists, just delete the Podcasts app. Podcasts will show up after you tap More in the Music app.
A number of people, including some I know, have had a problem with iTunes not recognizing their iPhoto libraries, and not being able to sync them to their new iPhones. It turns out, as explained in this Apple support forum thread, that extraneous ampersand characters (&) are causing the Album Data2.xml file to be parsed incorrectly. One friend showed me that in his case it was an & in a song title. Removing the & characters seems to fix this. So if you're having problems syncing photos, this may be the reason why.
Yesterday, I discovered that, when I asked Siri for the temperature on my iPad, it would always tell me the temperature in fahrenheit, even though I am in France, and my time zone is set as such. (There is no real country setting on iOS.) On my iPhone, however, I would get the temperature in centigrade, as expected. A friend suggested that this is because I had set C in the Weather app on the iPhone. As there is no Weather app on the iPad (I still don't know why), there's no place to make this change.
Fortunately, a commenter to the blog post I linked to above pointed out that there is, indeed, a way to set the temperature, but it is well hidden. Open Clock, tap on Edit, and you'll see two buttons at the bottom of the clock list, one for F and the other for C. It seems that the only reason this setting is here is because the clocks can show time and temperatures. But unless you live in a major city - one for which you can choose a clock - the temperatures here aren't much use.
Mountain Lion's dictation feature may not be as good as a dedicated speech recognition program (read: Nuance's Dragon Dictate), but it's good for those who only want to dictate from time to time. Apple has published a tech note about the dictation feature, listing all the commands that are possible. This shows you which types of punctuation you can use, but also how to make capital letters, go to new lines and new paragraphs, how to get numerals typed and more.