Developer Edition vs Carrier version

What about the other way? Would the T-Mobile version have the bands to work on AT&T's LTE?

Sent from my XT1049 using Tapatalk

I believe the Tmo version will work perfectly on ATT's network including LTE.
 
On the Dev edition Moto X; Does it have built-in wifi-tethering like the Nexus 5? And if it does, can AT&T find out if you use it without a tethering plan?