This might actually help Microsoft become more like Apple, if they can shed some of the OEMs. MS may own the market in several areas, but Apple has the buzz and the flexibility to do pretty much whatever they think they need to.
It's a pity that these OEMs aren't talking about Linux as a replacement - accelerating the adoption of Linux would help pretty much everyone (including, eventually, Microsoft by forcing them to be more innovative).
It's the Linux kernel, but above that it's totally incompatible with the typical GNU/Linux stack. Linux in Android is just a convenient layer between the hardware and Dalvik.
It's a pity that these OEMs aren't talking about Linux as a replacement - accelerating the adoption of Linux would help pretty much everyone (including, eventually, Microsoft by forcing them to be more innovative).