I haven't fully installed this patch yet because of two major factors:
1. Moving icons displays an arrow instead of the image.
2. All icons sets I've found tend to be too large (even for 1024x768).
Anyway, the patch seems to work flawlessly on my Amithlon (Duron 800) system. Icons appear instantly and window scrolls are just as fast as before. Simply, I notice NO slowdown.
I would REALLY hope a system like this (with the above issues addressed) makes it into OS4. I have a hunch the powers-that-be are keeping things under wraps until the final release, but I can't see them issuing a brand new OS with old, clunky GlowIcons.
Nice job, Elena.
TJH