I've done that to my G1 (Google Phone) on T-Mobile. The G1, once "unlocked" can also be used on ATT.
My G1 will actually act as a WiFi tether. Meaning, the phone will create a WiFi adhoc connection with the PC and then allow surfing the web through the phone's data connection. It's pretty sweet.
The G1 kicks azz!
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Steve
'08 Boxster RS60 Spyder #0099/1960
- never named a car before, but this is Charlotte.
'88 targa
SOLD 2004 - gone but not forgotten