Not bad, however these guys here have developed basically the same thing in a totally homebuilt unit.
Great great great feature: it also includes a fuel-remaining indicator based on amount used :-)

http://www.rc-network.de/forum/showt...=37649&page=29

Prototype testing currently under way, they are thinking about making kit units available...if i have telemetry i want to know the really important stuff as well.

Regards
Hank