Perhaps no new Calendar feature will be more welcome than the overdue ability to swipe between days. To move from day to day in the old version of Calendar, iOS device users had to rely on the tiny left and right navigation arrows. With iOS 5, simply swiping across the screen in either direction takes you to a brand-new day.

Similarly welcome is a new landscape mode on the iPhone. Rotate your iPhone to the wider mode from nearly any screen in the Calendar app, and you'll see an endless scrolling horizontal calendar view. (If you enter landscape while adding a new event, you simply get the widescreen keyboard but remain on the New Event screen.)

Speaking of creating events, iOS 5 ushers in a host of improvements to that process. You can tap and hold on your calendar to create a new event set for the time that you tapped. If you're in Month view, tap and hold on a specific day to do the same thing. Also new is the ability to tap and drag events to move them to new times. And when you tap on events, you can use the tiny dots that appear to adjust their start and end times, too.