When I was thinking about eReader where we can read our tamil text with a better reading experience, I was challenged my self to create one... Here is the result of it. This is an app that has Bharathi's description about Shrimat Bhagavat Gita.
This has simple interface but more of providing you a better reading experience. You can change layout, it is beautiful to see tamil texts in different layouts. :) You can also change the font size to best fit your android device. Also, you have GO TO section that will take you to a particular section in the book
Let me know your feedback, that would give me what should I focus to improve this further.