Calendar marks the final day
Calendar displays an “Ends” badge in the day’s event list to mark the final day of a multi-day event.
chartier
Watching video in the iPod app offers some great features, some which appeared with OS 3.0, but only if you’re watching in the vertical orientation. You can use the new 30-second skip-back button, and sicne this is a podcast from iTunes Store, the email button appears to easily share a link for the show with someone.
But if you rotate your device to the horizontal format, which most users probably do for watching videos, most of these features disappear.
Tweetie 2 can save multiple drafts, and it offers a “Send All” button for the ultimate blow-out-your-followers-with-a-tweet-blast experience.
It seems with a combo of iTunes 9.0 and iPhone OS 3.1, the “Now Playing” information is retained across iTunes sync sessions.
kiltbear
As of iPhone OS 3.1, the volume control disappears in the iPod app when the iPhone is plugged via the dock connector into a device that will control the volume externally (e.g. a car iPhone adapter). Previously, the volume control was there but didn’t do anything.
radicalliberation
There are a few different painting applications on the iPhone that support layers, but none of them do quite so gorgeous of a job at displaying and managing them then Layers. Simply click the layers button at the bottom left of the app and you get a quick animated transition to a 3D view where each layer is shown as a semi-transparent plane. Click a layer to make it the active layer you’re painting on, drag layers to rearrange them and double tap to get back to painting.
christopherdwhite
iPhone OS 3.x reminds you about expiring certificates like provisioning profiles for testing apps.
Pause App Store downloads
While downloading or updating an app from the App Store, you can pause the download by tapping its icon. Tapping its icon again will resume the download where it left off.
jeffrock
The Photos app displays a progress bar when uploading media to services like MobileMe and YouTube.
When you installed an app in iPhone OS 2.2 and earlier, it was put in the next available slot of your first home screen. This was annoying if you like to maintain a clean first screen.
In 3.x, new apps are added to the first slot on your second (or next available) screen, leaving your home screen alone no matter how many open slots it has. Oddly, when Voice Memos was introduced when I installed 3.1 on my iPod, it was added to the first screen.
kelseyhigham
