https://www.fsf.org/resources/hw/single-board-computers
From FSF's website:"The startup program is, in fact, the same program that runs the GPU and the video decoding hardware. Thus, the GPU and the video decoding hardware are unusable in the free world, but these jobs can be done with free software on the CPU."
Also, someone ported Broadcom's code. http://www.raspberrypi.org/quake-iii-bounty-we-have-a-winner/So I'm pretty sure this should allow the Raspberry Pi to boot without the blob.
