RMS said in his Emacs Conf talk that he thinks Scheme would be an acceptable language for Emacs extensions if the technical problems can be sorted out. I agree! I haven't watched the whole talk but so far it's surprisingly good. RMS talking about Emacs is RMS at his best, IMO. also it looks like the 14 minute TEDx talk I was poking fun at a few days ago was replayed in addition to that so it didn't take up the 20 minute slot.