Show HN: Android time tracker based on the '10,000-hour rule'

http://goo.gl/ZlTnM

I wrote a simple (currently free) Android tool to help graphically track your goals, with sights set on reaching 10,000 hours of practice.

Right now it's very simple and does most of what I need it to do. I'm interested in making it more useful, and I want to let those that would use it drive its development. This is a productivity- and self-improvement-focused group of folks, so your feedback would be greatly appreciated.

Questions:

- In general, is something like this useful to you?

- What features would you like to see implemented?

- I'd pay $5 for this if ... <fill in the blank>

Thanks for taking a look. I hope you find it useful.