Jonathan Leto sent out a great email to the list today about Parrot's involvement in GSoC this year. Parrot will be combining together with the Perl foundation again and entering as a single organization. I very much like this arrangement, under the blind assumption that we do better together in terms of student allotment than we do apart. I have no reason to doubt that.
Mentors: If you want to sign up to be a potential mentor, you can do it on the Perl foundation wiki.
Project Ideas: If you have any project ideas (I know I do!), list them on the Perl foundation wiki. If you tell me about the ideas as well, I'll feature them in a blog post and hopefully drum up some interest among prospective students.