To be honest Microsoft has a habit of layering on functionality on top of existing functionality in a piece meal approach so that you end up with a solution which is 75% compatible with the standards but not quite.
Despite being a software company (or because of it), I think innovating on the internals of Windows and its APIs and cleaning house on the software front will be the real challenge for them - making incredibly beautiful hardware might prove to be the easy part!
Despite being a software company (or because of it), I think innovating on the internals of Windows and its APIs and cleaning house on the software front will be the real challenge for them - making incredibly beautiful hardware might prove to be the easy part!