Moving to us|Need simcard[Q]

[inquisitor]

What about selling your European Hero and buying an American one?

Afaik for $200 you can even get the Google Nexus One on a 2-year-contract with T-Mobile and the Nexus One is even better than the Hero, as it has more CPU power and especially more than double resolution (854 x 480 pixels instead of 480 x 320), so you can view regular websites with way less scrolling. However I think AT&T have better 3G-coverage, so one should better wait for the AT&T-compatible version of Nexus One to appear (it's already subject to FCC-approval, which means we're few weeks away from release).

And before buying a US-compatible phone, be aware that AT&T run their 3G-network at 850 and 1900 MHz, while T-Mobile uses the so called "AWS-band" at 1700/2100 MHz (which is incompatible with the European 2100 MHz-band) and there is no phone supporting both, AT&T's and T-Mobile's 3G frequencies. So your decision on your next phone will tie you to an operator.
All other nationwide 3G operators in the US (Verizon and Spring) use CDMA, a SIM-card-less technology, where you generally can't take a phone to another operator.
So practically in the US you can't keep your phone when switching to another 3G operator due to these compatibility issues.
Are you still planning to move to the US?