I would say it was more the publicity from blogs that upped the sales of this app. However the publicity only helped because the developer took the correct steps in approaching a problem. Not enough credit is being given to a the developer for genuine understanding and present minded business skills.

I am clearly not the target market

Crouching Tiger Hidden Dragon anyone?

I remember 3D shark week on Discovery channel. Hit up a lens crafters and you got some red and blue glasses. Trying to remember if they promoted 3D shark week with 3D commercials or not. Anyone remember?