The Yale Economic Review informs me:
…stickK.com , scheduled to launch in December 2007, will provide "commitment contracts" that let individuals set a goal, choose consequences for failing to comply, and decide how to verify their progress. With the options of choosing to lose money every time they fail and designating third-party verifiers to check their success, users will face powerful incentives to meet their goals.
The very smart Dean Karlan and Ian Ayres are behind the idea. I’ve long predicted this won’t work; one group of potential customers doesn’t really want to change, the other group is unwilling to give up control. It’s not exaggerating to say that human nature is on the line here, and that if I am wrong this is probably the most important idea you will ever encounter.