I have finished my GSoC proposal. I post it here so everybody can read it. 
If somebody finds some spell mistake or you have any thoughts about it feel free to leave a comment. As you can understand I prefer to correct my mistakes before summit the proposal to the Google Melange system.
My project consists on redesigning Gtranslator the official GNOME application for translating. The idea is make the design more extensible and write the implementation in Vala, a much more readable language than GObject. Here is my proposal: