I have added my 2010 still valid projects (all), and three more. I also added myself as mentor for the USB projects, as I recently got experience on how the QEMU's USB stack works.
One of the projects I suggest, implementing USB 3.0 XHCI may need to be merged with clean up of Gerd's USB 2.0 EHCI emulation patches. I think just cleaning up for mainstream the patches done by Gerd is too simple and fast-to-be-done for GSoC, but as it's Jan's proposition I will not merge them. Jan if you agree with me, feel free to merge both projects, I'll mentor it. Regards, Natalia Portillo