[topbanana]

The main hardware differnce is that the Desire has real buttons (back, home, menu etc) wheres the Nexus One has soft buttons without the same level of touch feedback.

[borism]

can't Desire do haptic feedback like EVO 4G? (if you're looking for a feedback)

for me the problem is rather with soft buttons being inadvertently activated when using the device in landscape mode, not the feedback.