FLARToolKit is said to be slow, but exactly how slow is it? To answer this question, I had to write the most simple bare bones FLARToolKit example ever :) It has neither trix to speed it up, nor complex 3D content to slow it down.
update: source updated to FLARToolKit svn head; it can work with 2.5.4 download if you remove param.setValue() call, line 48.
Nice outfit :D