This is a new app for the iPhone it’s called Polarize and it was developed by Christopher Comair. I have found this app to be really useful at quickly adding notes to photos taken on the iPhone or in my photo/camera roll.
It basically polarizes the photo then allows you too add a tag, the finished product looks like polaroid snaps.
“Want to add a funky retro look to your photos? Polarize will do the job for you! Polarize is the only iPhone application that will do a series of pixel-by-pixel modifications to your photos, getting that true look. No cheezy overlays are done here.
Polarize gives you:
-A great unique look to your photos
-The ability to write at the bottom of your photos with a custom hand written font
-Any size photo is accepted!
-High resolution output”