Hippopost is a web-to-mail Free BlackBerry Application. You can snap photos from your BlackBerry and turn them into real post cards. Using their software you can send out 2 free postcards (postage, printing and everything else) per day.
Download the app at blackberryappsforfree.com (its the fourth one down or so)
I sent one to my brother-in-law for his birthday and he got it in a few days. pretty sweet eh!?
