[DHermit]

I know that on AT&T there is a price difference between an EDGE iPhone plan and a 3G plan. Does anyone know if Tmobile will upgrade my one line with 3G once I get this phone?

[ezrunner]

Wirelessly posted (overwhelmingly stressed)

Tmobile has limited 3G here in the US!
The cost for ATT was due more to ATT subsidizing the iphone 3G rather than due to the 3G function

[ndub33]

No additional cost for 3G through T-Mobile (above and beyond the cost of the BlackBerry Data package)-and it is availible in Orlando.

[zero7404]

this is like satellite tv...they charge you for HD, while cable companies don't.

it would be truely messed up for t-mobile to start hitting their customers with extra charges to use the 3G bandwidth. and a mighty messed up move by AT&T to be doing so, if you ask me.....

[BBSwany]

T-Mobile will NOT be charging extra because of the Onyx.