It has come to the point where about a third to half of planes flying domestically in the US have Wi-Fi. The most common service on these planes is Gogo Inflight Internet and it works well for browsing the web, email, and streaming radio. I even gave it a perfect score in a review back in 2009 which I will hopefully update on the trip to BlackBerry World in May.
While I remember connecting easily with my BlackBerry to the Gogo network but it did take a bunch of clicking and signing in from the browser. It wasn’t bad but Gogo just simplified it with a new BlackBerry app they told us about. The free Gogo app gives you a one step sign in for all flights using Gogo in the US. After you sign up for Gogo you can simply connect on a flight by clicking a button in the app.
As you can probably tell this app is targeted at frequent fliers who use Gogo especially since the half a megabyte app is a bit bulky for casual users. You can pick up the free Gogo Inflight Internet app in App World at this link.
NOTE: Gogo Inflight Internet is available on all AirTran Airways and Virgin America flights, and select Air Canada, Alaska Airlines, American Airlines, Delta Air Lines, United Airlines, and US Airways flights. Frontier Airlines coming in 2011.