Windows 10 Technical Preview First Impressions:

But now we come to Windows 10. Windows 10 is ditching the “One Interface to Rule them All” mentality, and moving to a more user friendly model of a single store across all platforms, and multiple interfaces to the same OS depending on the current usage model. We have not seen all of this in practice as of yet in the Technical Preview, but Microsoft has demonstrated their solution to this change in input mode with a feature they are calling Continuum.