I just got a notification on my htc desire Z that an official update for the phone is available. It's the Android 2.3 update!
I haven't installed yet since I have to downgrade and get the official recovery before it will accept the official updates(currently on clockworkmod recovery).
Update 2011-07-14 16:34: First I have to downgrade to get the official recovery(couldn't get it to work by just flashing the official recovery file via flash_image etc.). To downgrade I followed this tutorial from androidworld(dutch) again(It's working for 1.72 and 1.82).
Since I don't really care about full root(the only thing I use is cpu set and adfree) and S-Off(I'm not using custom roms on my phone desire Z) anymore. I'm taking my phone completely back to stock by using this guide from xda(english).
Now I'm going to update, OTA update by OTA update to the new android 2.3 update.
Update 2011-07-14 16:55: Update to version 2.42.405.2 with android 2.3.3 and Sense 2.1 has been installed! First impression: new menu and faster
Update 2011-07-15 00:36: Got the new update running for the past few hours and it's working really nice. Another thing I found out there is an extra tab on the dropdown menu with a menu to turn on things like wifi, bluetooth, gps, 3g etc.
More information to follow.