You are welcome, Dimitry!
To get some ideas you could take a look at proposals for this year (you
probably already read this):
Blueprints and wishlist bugs:
My name is Dmitry, I'm a student from Russia. I'm interested in
developing your project and participating in next Summer of Code (2009).
I want to know about ideas, which I can take part in. And I'm going to
make this work to be my master thesis at University.