They've been experimenting for years to find a way to build something lasting off TPB's audience, usually it's been turnkey scripts - pastebin, image hosting, blog hosting etc.

I think this concept is interesting but I don't think it's going to work (for them) - if you put $5 in your account and at the end of the month it's split between a couple dozen sites then each is getting pennies for sending their audiences off to give Tippr whole dollars.

If anyone can make this work it'll be Facebook with their credits system I think.