What Microsoft has been saying about Xbox lately strongly implies that this is a Windows handheld designed to solve software and user experience problems with using current Windows handhelds. And signs are pointing toward the next Xbox console coming sooner than the next PlayStation and essentially being a PC running a console version of Windows. Some speculation on my part, but I’m not the only one coming to those conclusions.
With any luck they actually want to bring true innovations to either Windows or Xbox. Getting support for gyros, accelerometers, back buttons or touchpads into Xinput would even benefit gaming on Linux since most games seem to default to that as a lowest common denominator.