After fixing the problems of Vista with a successful Windows 7, Microsoft has decided that it is time to be much more bold. Part of this is a change in the types of devices in the market and part of it is the maturing of new business models. This has resulted in Microsoft taking four big steps:

  1. Split Windows 8 into two streams: x86/x64 and ARM.
  2. Introduce an App Store for certified applications.
  3. Create a new set of tests for applications that want to carry the Certified for Windows 8 logo
  4. Create a new user interface, based on the tiles used in Windows Phone 7.

So what do these steps mean for users, developers and partners? Download Ian Murphy’s commentary.