A few highlights:
- 1GHz Cortex A8 (Hummingbird) processor
- 512MB RAM and 16GB internal storage
- 4 inch WVGA contour display (yes it's not flat)
- Android 2.3 "Gingerbread"
Android 2.3 platform was also announced, with SIP stack, Near Field Communications, more sensor support, multiple cameras support, Download Manager, and more. Now just waiting for a build is available for me Nexus One :)
Also on Google's official blog.