I wrote a little script that allows you to backup & save your Pinterest pins to your hard drive. As a graphic designer, I use Pinterest to bookmark pictures that inspire me, or that I like. I wanted to have all these pictures on a hard drive, for multiple reasons (backing up, offline viewing, etc).
Pinwatcher retrieves every 3 hours (customizable of course) the last 50 pins (not customizable of course, thanks Pinterest!) of a profile and save them onto your hard drive.
Feel free to contribute, comment and suggest features!