I have recently received an enquiry about a post I made saying that I contacted HTC about a month ago asking if WinMo 7 will be made available for the HD2, and if it will be a free download. I have found their response so have decided to post it on here:-
Thank you for your enquiry about HD2
What we do it ROM Upgrades from our website, however 6.5 windows mobile has only been out 2 months and windows mobile 7 hasn't even been developed. This wont be out until next november at the earliest. But when it is available it will be a free download.
If these steps have not helped, please let me know by responding using the link provided and I will be happy to check again for you.
HTC customer support team
HTC Corp. Global Service Division