Android 3.0 Gingerbread will be released in mid- October (around 15 -16th), 2010. First handsets shipping in November/December – for the Holiday Season.
Minimum hardware requirements for Android 3.0 devices are: 1GHZ CPU, 512MB or RAM, displays from 3.5" and higher. We all of course heard that Android handsets with 2GHz CPU's are coming.
New 1280×760 resolution available for the devices with displays of 4" and higher
Completely revamped user interface. If you want to get a feeling of what Android 3.0 Gingerbread UX is like, check out the Gallery App on Nexus One. The same overall feel, light animated transitions,etc. Natively, through all the UI.
Android's split into 2 branches becomes official. 3.0 for top of the line/high end devices. Cheap, low-end mass market handsets will keep Android 2.1/2.2
http://gizmodo.com/5578055/android-gingerbread-rumors-dismissed-by-google-on-twitter
http://gizmodo.com/5576478/rumor-android-30-gingerbread-out-october-for-higher+specced-phones
Oct with phones Nov/Dec
Also, Gingerbread might not be Android 3.0
http://www.unwiredview.com/2010/07/02/revisiting-android-3gingerbread-details-post-some-corrections-clarifications/