DA 2.7.4 and JQuery 1.3.1 on
http://madr.se/~ay/slickspeed-domassistant-jquery-prototype/
are both unmeasureable fast in Safari 3.1.2 on my WinXP machine. When
you see the difference between the both (DA and JQuery) in other
browsers the difference is much much bigger.
I did a test earlier and saw that DA 2.7.4 it out-performed jQuery
1.2.6,Prototype 1.6.0.3, Mootools 1.2.1, ExtJS Core 2.2, Dojo 1.2, YUI
2.6.0 on any browser I could get my hands on (not IE8).
PS: I'm a fan of DA too. I ported my code to use DOMassistant instead
of PrototypeJS and my project is faster big time.