UK carrier Three has confirmed that the HTC Desire Android 2.2 update (v2.25.771.1) will be going live on Thursday October 14th at 16:00 Taiwanese time (e.g. 9am UK time).  The update will presumably begin going out OTA at that time, though we’re guessing it’ll be a staggered roll-out and not every Desire will be offered the new firmware at the same time.

“HTC Desire owners, Android 2.2 Froyo update – HTC have said the update v2.25.771.1 will be live at 16:00 10/14(TW time)” Three UK