Id just get the incredible. At this point there is little reason to buy a D1 unless you want a large hacking community behind you. The Incredible is hacked, so there is promise there....and the hardware is just that much better. The only thing the Incredible doesn't have is a keyboard, if you can live with that, then the choice (imho) is clear.
Unless you're heavy into 3D gaming........ The Incredible's GPU sucks (to put it simply) compared to the D1's. About 1/3 the rendering performance, IIRC.
The hardware is NOT "just that much better" in all cases, it's in no way as cut and dried as that.