re: Calm before the storm....
Pretty much everyone has said, now the Microsoft E3 hype has died down and everything has come out in the wash, the Sony technogy is the better balanced of the 2, and it's also more accurate.
With the Wand and PS3Eye, you have the best of both worlds. The Eye can do facial and body movement recognition, and with the wand you get the precision movements too.
You only have to look at Microsofts pre-recorded demonstration, and the faked "live" bit to see they are having problems gettting to to work right now, and that it's in the REALLY early stages of development. The Sony was was shown working live in a real demonstration.
I suspect the Sony Wand (or whatever it ends up looking like and being called) will beat Microsoft's to the market by 6 months at least AND end up better.
That said, it's likely that Microsoft will just shove what they have out on the market early regardless of if it works or not, just they they did with the 360 itself.