8. Xbox Handheld
There have been rumors about Microsoft's desire to jump onto the handheld market with a kind of handheld Xbox akin to the PlayStation Vita, but it's unlikely to happen as they're heavily invested in the Windows Phone with their collaboration with Nokia.
In that regard, Microsoft is struggling to gain a foothold on the market going up against Google's Android and the iPhone, so it's unlikely that they'll want to cannibalize their own market with the release of yet another handheld device. Beyond that, we've seen nothing on the development front that indicates that any developers are working on a new Xbox-based handheld platform.
