Perhaps looking to differentiate its service from the other two US carriers, AT&T is working with Apple to get a “4G” icon on the iPhone 4S when it hits its HSPA+ network according to The Verge.

The move would seem to try to further differentiate AT&T’s network which is already significantly faster than Sprint or Verizon’s (and theoretically double the iPhone 4 speed).

If you are in the US, which network will you be getting an iPhone 4S on?