Official launch date is May 15.
I see this unit as being the long awaited upgrade to my XDA2, the dimensions are very similar but it is lightyears ahead in all specs and blows away the competition. This is what htc should have been working on instead of moving its product line towards a smartphone design.
O2 asia said they would offer a free upgrade to WM6 once they have tested it.
The USB OTG will be a huge benefit, meaning this PPC will no longer be tied to synchronization with a PC - you can use it with USB flash drives, printers, cameras etc.
IMHO, this is the best all round package you can currently buy and well worth importing it if you want a XDA2 replacement. The presentation is a bit disappointing though, pretty bland but everything else is spot on.