I've read your article and wonder if you have heard anything of Apple in that regard. Or did the code in the obj-c runtime change already ( seems the article was written 2003 ).
If it's a 20% performance gain on a G5, shouldn't it be possible to patch the runtime Apple delivers ?
Thanx for searching the flaws of the Libraries. It seems that more and more people write libraries without any sense of processing speed these days.