Last October, an internal AT&T talking point claimed that the carrier was working with Apple to have the iPhone 4S status bar display a "4G" indicator when the device is connected to an HSPA+ network.
With today's release of iOS 5.1, that change now appears to have gone into effect as shown in a photo posted to Twitter by @ichadman.
While short of the data speeds seen with LTE networks now rolling out, AT&T and other carriers have also referred to their HSPA+ networks using 4G as a marketing terms to distinguish the standard's faster performance relative to older 3G standards.
Top Rated Comments
LTE Advanced is the only spec that meets the definition of 4G, however that isn't out yet.
it said 3G previously.
The status bar should simply display 3G+ when it is HSPA+!!!!