When we think about small, we think about even the pocket size devices, even the phone. We think about devices that are very small, you know things like a little harp, we have information on it. things that the wrist watch, many different factors we'd like to bring intelligence to, and we started this about three years ago (19990. It was incubated at Microsoft Research. It was a grid example of taking a very demanding scenario and very advanced technology, and working to bring those two things together to satisfy some scenarios that were very demanding. 
Bill Gates wearing a Spot watch