suarezian :
Hi. Thanks for your answer. Can you tell me if there is any difference between an unlocked AT&T G3 and a normal G3? Also, is there a huge difference between 1440p and 1080p screens?
The only difference between a locked and unlocked version is the ability to use the unlocked phone on another network (T-Mobile in this case). Well, there is one other benefit: You could install the T-Mobile G3 ROM onto the AT&T phone (you need to flash it manually). The T-Mo ROM has much less bloatware and will still work on the AT&T network.
Regarding the screen, no there is not much perceivable difference between the two different resolutions for LCD screens.