Did a quick search and couldn't find this anywhere so I thought I'd share a little tip I picked up recently regarding the Hyperlapse app by Instagram on iPhones...
- download Hyperlapse app
- load app and tap screen with 4 fingers until dev screen shows up, max that shit out (1080p, 30fps, expanded speed)
- film shit (remember to tap to focus as you ride!)
- enjoy your gimbalesque steady cam shots on nothing but an iPhone
- get paid
Give it a crack, compare it to a normal iPhone video, I think you'll be pleasantly surprised!
Go forth and film.