Microsoft showed off a "Write in the Air" system developed in China. You can write with a gyro controller or in thin air, using a camera. Is it next for the Xbox?

You can't help but notice the giant Xbox logo there on the screen, and the researcher I talked to said that it would be a great system for the Xbox or for Microsoft interactive TV. Still, when I pressed him, he said he didn't know of any immediate plans. Whatever, it makes sense, except maybe the part where he grabs an orange and uses it as a stylus.

Microsoft's TechFest is an annual jamboree of innovation and gadgetry from Microsoft Research, which means that while none of it is coming out as is in products in the near future, it's essentially what product development people use to add cool stuff to their actual releases. I'm here all day.