This is a todolist app I built for android platform. I am not releasing it on play store because there are too many of them out there but You can download the apk file here (1.18 MB).
If you want to checkout how it's implemented I have put up the code in GitHub at https://github.com/sivasantosh/My-Todolist
All the icon graphics are drawn by me. I was just playing around but they came out pretty good.
Cheers.