Maybe porting parrot (http://www.parrot.org ) to Plan9 would be an interesting Gsoc project
Parrot is a virtual machine designed to efficiently compile and execute bytecode for dynamic languages. Parrot currently hosts a variety of language implementations in various stages of completion, including Tcl, Javascript, Ruby, Lua, Scheme, PHP, Python, Perl 6, APL, and a .NET bytecode translator. This is the list of languages at different status of support: http://www.parrot.org/languages -- http://vejeta.com/portal Fidonet: 2:345/432.2
