Tmobile's got a nationwide 7.2mbps HSDPA network that is compatible with the 3G radios on phones from Europe and Asia. Compared to AT&T who has a different radio frequency for 3G and are still working on the 7.2mbps network, that's pretty solid. They also have the lowest priced unlimited data plans of any US carrier which helps the Nexus One come in $500-$1000+ less over the two year contract (the difference in the phone cost is $20).
Will AT&T lower their prices to compete with Tmobile?
Breakdown from BillShrink is below.
Billshrink
