What took the airlines so long to put this together? It can't be the most complicated setup, and the value proposition is great.
$5.95 for the entire flight is a bit pricey, especially when there is the possibility of running out of batteries, but I sprang for it as I have a lot of work to do online today.
The speed is good, and so far I haven't had any issues at all. I'm running Debian GNU/Linux, but that shouldn't matter thanks to the fact that wifi is an industry standard.
I'm flying Airtran and apparently most of their planes have wi-fi setup. Good stuff!