If you're an iPhone/iPad photographer you'll find Dan Rubin's How to get the best out of photo apps on your smartphone video to be worth watching. I'm preparing for an upcoming photo trip to the Grand Canyon and, thanks to Dan, I just added several new tools to my pocket camera bag/darkroom.

(Note that the release of the SKRWT app for fixing lens distortion and parallax has been been delayed until later this month.)

↬ John Gruber, Daring Fireball