[jccooper]

22 minutes is quite good. 7 is about normal. Even on the larger ones, you don't often see >10 min.

Actually, the Phantom 2 is said to go 25-30 minutes, but perhaps that's without payload.

This fellow went all-out to get 97 minutes: http://www.diydrones.com/profiles/blogs/my-97minute-06second...