HTC has confirmed that they will phasing in a Gingerbread update to all Desire hansets, including the original HTC Desire and the more recent HTC Desire HD and Z. The update, which will also include the Droid Incredible S, is scheduled to roll out in the second quarter of this year.
"We are excited to announce that the Desire HD, Desire Z, Desire and Incredible S will receive the Gingerbread update in Q2" HTC
Originally launched last fall with Android 2.2 (Froyo) and HTC's Sense overlay, the HTC Desire HD and Desire Z have 4.3" and 3.7" screens respectively, with an 8MP rear facing camera for the Desire HD, while the Desire Z gets a 5MP model. Both are capable of 720p HD recording. The Desire Z also sports a flip out QWERTY keyboard.
HTC Desire HD:
HTC Desire Z: