As a fan of all things interwebby, this business model is pretty cool; a pen-and-paper RPG company selling unprotected PDF's. You can download whatever you've paid for multiple times, so if you misplace your copy, there's no hassle getting a new one. This obviously has a lot of room for abuse, but I like that they're trying to provide a service in good faith, regardless of the financial risk. I think they'll do OK; I know of at least a couple of similar efforts in online publishing and music that worked out quite well.

link: http://e23.sjgames.com/faq.html

via boingboing