I just updated my HTC Desire to the new Cyanogenmod 7 rom and it’s been running fine. A part of me does miss the HTC Sense UE overlay .. but - meh. If you have already rooted your phone and been using Clockwork ROM Manager, you just need to go looking for the new Cyanogenmod 7 RC1.
The upgrade process is very simple - but here are a couple of pointers -
Remember to add the Google Package
As part of the install you should choose to get the Google Apps package as well. Or from experience you will miss things like Android Market and Google Maps. Upgrading to this package will give you the latest Android Market which is missing in the v6 rom.
Backup then Wipe Cache for a Clean Install
Clockwork Rom manager will give you the choice to backup your current rom and then wipe your cache and local settings. Do this! it means a bit more effort to setup your phone again - but a clean install is always a good choice.
I’m currently using the HTC Desire which I got in April 2010 - it’s one of the first batch that came with the AMOLED screen and not the super LCD. It was first rooted after updating to Froyo Android 2.2 using Unrevoked for Mac OSx.
Read more from my blog for an introduction and quick tips on developing in Hugo or UCTD.