I neglected to post about my app for iDevices that is now available on the Apple App Store.
This app is a collection of Glossaries found in FAA publications for pilots. It includes terms and acronyms from seven FAA books including: Handbook of Aeronautical Knowledge, Airplane Flying Handbook, Instrument Flying Handbook, and Aviation Weather. It also includes the acronyms from the AIM, the complete Pilot/Controller Glossary, ATC Glossary, and definitions from the FARs.
The terms can be browsed by book or by category—Private, Instrument, Advanced, Weather, Aircraft, Human Factors, Non-Airplane, and CFI. A quiz section lets you test your knowledge of random terms.