Like the concept, but the implementation doesn't really click with me. The ideal for any task-tracking system is to require as little manual overhead as possible. Typing in stuff and clicking boxes is not very appealing. The Chrome extension is a lot more interesting.<p>Using coins to purchase in-game rewards is a good idea. User-defined rewards, nah. Probably not.<p>There's too much conceptual overlap between Habits and Daily. I'd get rid of Habits entirely (who really wants "micro-tasks"?), except as an API thing.<p>If you want to make something exceptionally cool, integrate with RescueTime and Fitbit.