Would a 3G iPhone Benefits T-Mobile Customers?

If you are on T-Mobile network and thinking that 3G iPhone is beneficial buying it... I would say no. Do not buy 3G iPhone as it is not worth for T-Mobile Users. Look at the reason below.

There are different frequencies that the 3G network uses and as long as your phone supports the 3G provided by your service provider, then the phone will work.

HOWEVER, T-mobile USA 3G uses 1700 MHz spectrum for download and 2100 MHz for upload (850/1900 for voice). AT&T uses the 850/1900 MHz frequency spectrum for 3G data (850 MHz for voice).

If the phone doesn't have a radio with the correct frequency, the phone will not work. It is highly unlikely that Apple will include a odd-ball 1700 MHz radio with the iPhone because if i recall correctly T-mobile USA is the only one to use this frequency. You will still be able to use the "3G" iPhone on T-mobiles 2.5G (EDGE) network (backwards compatible) meaning the phone will work and you can get data, just at EDGE speeds.

Now think is it worth spending double $$$$ for something that won't benefit you over T-Mobile network!!. Think 20 times before you make a purchase.