It has been reported that NVIDIA is working with Lenovo and ASUS on a Windows RT Tablet, but new reports suggest that we might already have seen the mystery device in action. Sources have let slip that alongside the Intel-powered IdeaPad Yoga laptop / tablet hybrid, the company will release a Tegra-powered version running Windows RT, combining the same hardware with ARM’s technology.  If this is true, then plenty of options are on the table as far as the IdeaPad Yoga is concerned.  The launch date is expected to be on October 26th.