Suggestion: After you have a reasonable facsimile of a working log for pilots (if you choose to go this route), consider generalizing/expanding for scuba divers - Same kind of honor-system log-book for dives performed. I would imagine there are other disciplines that would benefit, as well...

Not a lot of time right now - sent you an email.

The quickest path to some income would seem to be to find a co-founder that has the exact skills that you need, together you should be able to go from concept to working prototype in a couple of weeks.

Sound out your pilot buddies if they want to be your 'pilot' ;) customers.

Google "iPhone pilot logbook". There's at least one app already out there. Find out what they do and do it better.

It's definitely been done before [1] but I think that it is a good app to start and then iterate with features while you're learning android. [1] http://androidforums.com/application-requests/25519-airline-...