Hello,
I have read many threads about T-Mobile 3G networks' uncompatibiliy with the iPhone 3G because of the frequency issue as everybody was pointing out that T-Mobile uses 1700 MHz for 3G network. (So far I have understood from different comments)
Please check out the 3G frequency of T-Mobile from the following link and you will see that T-Mobile will also use 2100 MHz freq. for 3G.
3G FAQs
And from the iPhone 3G spec(following link). you can see under the "Cellular and Wireless" division, iPhone supports UMTS/HSDPA (850, 1900, 2100 MHz).
Apple - iPhone - Technical Specifications
Then why shouldn't iPhone 3G support T-Mobile's new 3G network?
Can somebody please explain?