even if nouveau is finished, there is still software running on the card that you don't, and won't, have the source code to. same with your BIOS. stallman uses a laptop where all of the software in the BIOS is open source, as well as firmware software in the processor ... good luck with those unknown-format microcode blobs for Intel CPUs...
Absolutely, if and when the Lemote people get marketing sorted in the UK, and when I retire and need not use large monitors/large storage/media codecs, moving off binary blobs is the goal.
Until then, crusts must be earned. Trivia of the week: blackberry handsets support .ogg files. Wonderful.