Apparently, over the weekend Sony got FCC approval for not only an AT&T 3G Xperia X10, but also a T-Mobile 3G Xperia X10.

So this means those of us in the States can choose between T-Mobile or AT&T when we buy the phone without a contract from Sony directly.

This is a first for us here in the US! This would be the first time any phone manufacturer made an AT&T AND a T-Mobile version of an unlocked device.

Still not sure why they don’t just put both into one phone though (save themselves from having to make two separate models)… anyone understand enough about manufacturing to elaborate?

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