My buddy, Anand (he does mobile for Hubspot) turned me onto a great post that really resonated with me:

RT @anandrajaram: Side Drawer Navigation Could Cost Half Your User Engagement http://buff.ly/1hY1NPy

Turns out hamburgers are bad for engagement!

I’m not surprised by this – the hamburger (image source and more info on the hamburger design element here)  is too cutting edge for most people. Nobody knows what it is! Just because mobile geeks get it doesn’t mean it will help improve ordinary people’s interactions with a product. This highlights a major danger in going too far with cutting edge design techniques, and not designing for the standard user.