AT&T customer Keith Geissler complained to the Better Business Bureau about the slow speeds on his Motorola ATRIX 4G and was told by the carrier, "“be assured that AT&T has not ‘capped’ the upload speeds on the ATRIX. The ATRIX is a HSUPA-capable device, and we currently are performing the testing and preparations necessary to ensure that, when we turn this feature on, you will continue to have a world class experience.”
Whoa! Let's watch this again in super slo-motion. AT&T said that it is not capping upload speeds, but nothing is said about not capping download speeds. Furthermore, the carrier has not given a decent explanation on why the devices were disabled to begin with and has not given a time frame when we could expect the HSUPA connectivity to begin.
In the meantime, it seems that the 3G Apple iPhone 4 has faster data speeds for the time being than both the ATRIX 4G and the Inspire 4G. Of course, as AT&T says, this eventually will end and users of the two Android devices will get to enjoy the speed that they expected-and paid for. When this will be though, remains up in the air.
source: Xda-DevelopersForum via BGR