uhmmm i got a lumia 920 and it has no at&t logo i wonder that i'm the third world country so that why my lumia has no logo on it.
i think the logo is available in some regions. it's cool there has logo XD
Most of us here in the US would prefer the unbranded device without the AT&T logo!
I don't consider the device without the AT&T logo to look cheap. I think the AT&T logo is ugly, and I'd much rather have a device without it.
AT&T is only a US carrier, though. So you won't have the AT&T logo on any device that isn't originally branded to AT&T. Devices sold in Europe, Asia or anyplace else outside the US won't have AT&T logos.