They're also much less meaningful (it's typically rather easy to spin up qemu) but they provide a base line.
So for all I care, "port coreboot to QEMU/$anything" would be an interesting and helpful set of projects that students could decide to propose as theirs.
It also avoids the hassle of getting hardware and tools to the students, which created some unfortunate delays in the past. GSoC has some hard deadlines, so this is something to keep in mind.
Google Germany GmbH, ABC-Str. 19, 20354 Hamburg
Registergericht und -nummer: Hamburg, HRB 86891, Sitz der Gesellschaft: Hamburg
Geschäftsführer: Paul Manicle, Halimah DeLaine Prado