I really hate laptops specially the ones built by sony, personally I'm an apple fan and have my macbook and a hackintosh as a desktop. So the idea of a psn account on a vaio doesnt really interest me but having your psn account on you tv and watching your friends come online or offline while you watch shows could be great.
Maybe it could be cooler if they released this application for all current operating systems on computers other than locking it down to vaio computers. Having a cross-platform messenger would be kick ass but we can only hope and congrats to sony for trying new stuff. Cheers.