Further proof that wacky ol' company Microsoft wants to harvest your soul, they have registered a patent ( http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090309891%22.PGNR.&OS=DN/20090309891&RS=DN/20090309891
) that can read your physical, emotional and mental attributes so that it can create an avatar in your likeness.
So, lets say you're a fat middle aged man with a neckbeard still living with your parents. MS will create a likeness of that! It'll make smack talking easier as well. That's the only positive I can think of. Nothing good can come of this.