Apparently if you live in Taiwan, there will be no over the air update for your Windows Phone, via Zune or any other means. You have to run down to your local HTC dealer right now, and get your phone flashed to Mango. Initially the Mango update is available for the HTC Mozart, and the HTC HD7, obviously the two carrier supported devices on the island. [Being the home of HTC, you might think there would be a larger range.] or they can download the RUU's and update independently, obviously a hidden link at this point.
HTC Source, Windows Phone “Mango†Rolls out in the Home of HTC!
