Hardware & software:
- “HOOK” – Maciej Targoni (iOS) for $.99 from Leo Laporte.
- Arduino, Programming, Circuits, and Physics at http://www.physicsibook.com for $.99 from Alex Lindsay.
- Twitterrific 5 for Twitter – The Iconfactory (iOS) for free from Rene Ritchie.
- Feiyu G3 Ultra 3-Axis Handheld Gimbal for GoPro HERO 3/3+ and 4 (Black) for $230 (on Amazon) from Don McAllister.