There is something interesting here though. I investigate computer crime and 18 months ago forensic submissions would be looking for "Windows Live/Messenger Cha

There is something interesting here though. I investigate computer crime and 18 months ago forensic submissions would be looking for "Windows Live/Messenger Chat". Now it is looking for "Facebook Chat". It took about 3 months for the switch to really take note, and the forensic tools took all of about a month to catch up. Facebook had some serious market penetration very very quickly with that product. So in a way; it is not so much MS failing as Facebook attempts to build a chat app succeeded.