Have you read the Boy Genius report on this yet? it actually shows screen shots of AT&T/Cingular on the device.
There is no wi-fi on the one BG was testing
It has a full system wide spell check
Speaker is better than the 8800
the keyboard to be much easier to use, a la 8700-style
little thinner, and smaller than the 8800
No video recording
Runs OS 220.127.116.11