T-Mobile officially unveil their Google Android phone “G1”, according to the unofficial T-Mobile blog there’s one click access to the following Google applications. The device requires a gmail account to sign in and use, no corporate access email available. GPS is available and a 3.1MP camera onboard. No video capture.

Maps (including satellite, traffic and street views)
Gmail
YouTube
Calendar
Google Talk

The dimensions are as follows:

Size–4.6 x 2.16 x 0.63 in
Weight–5.6 ounces
Display–65K color screen, HVGA (480×320)
Talk Time–5 hours
Standby Time–130 hours

Source:→ The Un-official T-Mobile blog