Here’s a quick one for you. Dublin based web and video development company Mad Dog Digital (Facebook | @maddog_dave) has created this short (19 seconds) 3D video using two iPhones, taped together, and YouTube’s 3D video editor.
The 3D video editor is one of the under used features on YouTube, probably because of the effort involved in recording two videos at the same time and then processing them online.
If you are doing this yourself (and don’t mind sellotape your iPhones together) YouTube recommends that you “Place both video cameras side-by-side (against each other, or even attached if possible), and start recording at the same time.”