This leaked HTC Supersonic pic is super grainy. However, you can see that it resembles the HTC HD2 except for that row of buttons. The HTC Supersonic is an Android phone (with HTC Sense) with very good specifications. One more pic (back view in white color) after the break.
We should be seeing Android OS 2.1, Snapdragon processor, 4G (WiMax) and maybe a FM radio. The rest, I guess, will be familiar as current top end HTC Android phone.