The Fly-Fi service is finally live, at least on one plane. JetBlue started letting customers use the service very much in beta mode on flights yesterday. I was fortunate to have it on my JFK-MCO flight last night. It is incredibly fast, most of the time. I got 22mbit download speeds at one point and the potential for the service is great. There's still a bit of work to be done to get it truly ready for prime-time, but once it is there it will be at the head of the pack by a long way. Here's my review of Fly-Fi and also one from engadget which was on the AUS turn yesterday morning.