The Apple website has been updated to show all of the wonderful new features that we'll be seeing in the next few months. iOS 5 "in the fall," Mac OS X 10.7 Lion "in July," and iCloud "concurrently with iOS 5."
Each of the major images on the home page points to a new landing page. For iCloud, you see a full explanation of the service and how it's going to rock your world. The Mac OS X 10.7 Lion page touts the $29.99 price tag for all of the computers in your house, while the iOS 5 page describes all of the new features.
It's worth browsing these pages to pick up details. What's your favorite feature so far? Tell us in the comments.