It's very new and very rough. I recommend waiting until I iron out a few more kinks before you use it but if you're feeling adventurous and want to give it a shot, I'd love to hear what you think! You can see my to do list here.
I reused some of the code and architecture from my to do list program, Do Me, although I got to fix all the things I did wrong there :-) Since I had a pretty good handle on angular.js before starting this, the code is very nice and was a breeze to write!
It's open source for maximum goodness.