I find it super interesting that Microsoft (in 2010) bought an ARM architecture license. I think it will be interesting to see what they do with it (if anything).
http://www.eetimes.com/electronics-news/4204863/Microsoft-ta...
http://www.eetimes.com/electronics-news/4204863/Microsoft-ta...
Microsoft does not need this simply to port Windows to ARM.
Therefore I think it is an interesting question: Why did Microsoft buy an ARM architecture license?