I really liked the Diamond v1, except for the slow 3D touchflo interface. I'd love to see it improved all round as it has a lovely form.
Lets just hope HTC properly realise that (better?) 2D and 3D acceleration hardware is a necessity because Windows Mobile devices with higher res screens, above your conventional 320x240 displays present in devices up to the HTC TyTn II, were always typically quite sluggish.
Anybody remember that slow-arsed HTC Universal (I think) we knew it as the Orange SPV M5000. Leads you to think that such devices refresh the display straight from the ARM CPU - not a good idea.