[freejack]

I never said revolutionary, you did. Had you asked, I would have probably characterized it as "evolutionary" more than anything - but most innovation is.

I disagree that this is imply "voice input". Siri takes a step beyond simple data input and manipulation and provides a new interface to several system functions and services in a cohesive and purposeful fashion.

If, as you contend, that Google is well positioned to respond to Siri, then they probably will - I'm not sure you actually read my original comment - I had pretty clearly indicated that both Microsoft and Google have assets that they can deploy in response to Siri.