The new, native news widget.
The native, location-aware weather widget.
The app launcher is revamped so that it isn't a drag-and-pull menu, but instead you press the button and the icons zoom into place, kind of in a scrollwheel. (Though it's hard to tell from this shot.)
Live wallpapers, which you can interact with.
Every text field is voice enabled, so you basically never have to type anything.
Gallery: A revamped 3D photogallery app pulls visual tricks like having photos zoom out when you tap an album, and load on a 3D plane when you move the phone around, using the accelerometer. And, galleries are background synced to Picasa.
Oh hello, Google Earth.