Looks like the Nexus 4 may actually have LTE!

[S_C_B]

nexus has LTE - xda-developers

Someone with an AT&T LTE sim try this asap. Don't forget to change your APN settings.

 

[ragnarokx]

Please see this thread: http://forums.androidcentral.com/showthread.php?t=227858

Sent from my Nexus 4