So here I am, at 35,000', flying from L.A. to Boston, and I'm posting to my blog, thanks to the good people at VirginAmerica. Very very cool. I must tell you other aspects of the flight are nice too - the seats, the food (yeah, you have to pay a la carte, but you do it by ordering through a touchscreen and the food itself is great), the movies, etc. - but the ability to use my laptop online via WiFi is a game-changer. It feels fast, too, with good bandwidth and without too much latency.
The sky is no longer the limit :)