HTC 'Supersonic' to ring in WiMAX on Sprint, Android-style

Remember that mysterious HTC A9292 with WiMAX rumored for Sprint a few days back? Well, take a seat, folks -- we think we've got the lowdown on it here from a trusted source, and it's a bit of a monster:

• Codename is "Supersonic" -- a name we've heard at least once before.

• Feels a lot like you'd expect an Android-powered HD2 to feel thanks to a 4.3-inch non-AMOLED display and a svelte shell. (For reference, the HD2 is 11mm thick, but we don't have exact dimensions here.)

• It's got a kickstand on the back. This wouldn't be a first for HTC; the Imagio on Verizon has one, for example.

• Runs Android 2.1 with HTC's Sense UI.

• Our tipster saw it in white; production devices could be available in different colors, of course, but white seems like it'd be an intriguing choice for a phone of the HD2's size and shape.

• The phone's software stack is buggy enough right now to suggest that we're not looking at a release any time soon, but we don't have details on the projected launch window.

• It's fast -- Snapdragon fast, it seems, though our tipster can't confirm the processor under the hood.

We know 2010's just begun, but between all this noise and the promise of a legitimate 4G radio on board, let's be real -- we're already looking at a very, very early contender for smartphone of the year. Let's not run into any major roadblocks between here and retail, alright, guys?