Short of time? Intimidated by a huge sprawl of WWDC news? Here's the most important things for iPhone users to know about what changes we'll be seeing in the fall when iOS 5 is available for our phones.
1. iCloud
Probably the biggest change to how we'll use our iOS devices going forward, iCloud is the glue that binds it all together. It has a number of big features of its own: buy music on your iPhone and copies of the same songs will appear on your Mac and iPad, for example. Work on a Pages document on your Mac, and the same file will be available on the iPhone. iCloud also shows a simple list of all the apps and music you've purchased, so you can easily re-download things you've already bought but deleted.
iCloud also plays an important supporting role in many o
