As developers, we are consumers of Microsoft's services.  Those services are likely already in commercial products before being released generally.  My car has voice command and bluetooth so I can do hands free cell texting and calling.  GPS devices have had voice command for years.  So far the services being offered are low level speech-to-text, text-to-speech, grammar, and language services.  We are not being offered expert systems nor advice systems.  Microsoft may offer some neural network tools since they're already widely available through other sources.  But these come untrained...and believe me, intelligence is more about experience and context training than anything else.  Context plays a heavy role in intelligence since there are so many more exceptions than rules to anything.