The latest confirmation comes from a response to a customer question sent last month asking about the very issue of an upgrade.
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
At present we are also pretty sure the OS will be announced at Mobile World Congress in a months time, which we expect to be following very closely.
If you want to keep abreast of Windows Mobile 7 news remember to sign up our RSS feed or follow us on twitter using the bar below.