In May, ASUS announced that Eee Pad EP101TC, would be running Microsoft Windows Embedded Compact 7. A month & a half later, ASUS ditching Microsoft in favour of Android.
ASUS has now stated that "the first real public unveiling of the new tablet computers will come at CES 2011, with telcos getting a sneak peek at the devices sometime in December. With a launch window of Q1 2011, ASUS also has plenty of time to adapt Android for their needs. It would probably be safe to assume that Android will mature quite a bit between now and the release of the Eee Pad, and ASUS is probably hedging a few bets on the maturation of the platform."