A few questions:

When T-Mobile upgrades to 7.2 mbits this Christmas, will that work on the N900's 10 mbits chip? Sorry if that's a stupid question.

Also, when T-Mobile rolls out 21 mbits next summer, will the N900 10mbit chip be able to match the same practical speed as a future device with a 21mbit speed?

To clarify, a 21mbit device on T-mobiles 21 mbit test network currently receives 6.8 mbits only, far cry from the 21 mbit theoretical speed. Will the N900 10 mbit chip be able to match this, or does it always need to have a 21 mbit chip to match? Thanks in advance.