Not yet available for download, ASUS unveiled its plans for Windows Mobile 6 upgrades for its current line of Windows Mobile devices.
According to a teaser-page, ASUSTeK will provide free Windows Mobile 6 Classic and Professional upgrades for the ASUS A639/A626/A686/A696 and ASUS P535/P735:
According to the above mentioned teaser-page, the upgrades should be available from July 2007. ASUS hasn't given any further information yet.
Cheers ~ Arne