T-Mobile USA has been updating their network to HSPA+, but so far we haven’t seen a smartphone to play nice on HSPA+ from T-Mobile, but word has it that a leaked image of what appears to be the myTouch 3G HD could be the first HSPA+ smartphone.

According to an article over on Mobile Crunch, details on this device are as expected quite limited, and that the guys over at Android Central, who source the image say there is a good chance that it could be the first HSPA+ phone, although that hasn’t been confirmed.

There isn’t much else to be gleaned from the leaked image either, apart that the device has the usual home, back, and navigation keys and the Genius button found on the side, and that’s about all.

Of course there is a possibility this image isn’t the real deal and just a mockup, still we’ll be keeping an eye on this one and as soon as we hear anything we’ll pass it along.