These improvements sound great. .css, .attr, and .map were major bottlenecks in my performance, meaning a lot of JQuery functionality was just too costly to use

These improvements sound great. .css, .attr, and .map were major bottlenecks in my performance, meaning a lot of JQuery functionality was just too costly to use (performance-wise). Now, I'll have to play around with JQuery to see if it's usable for some heavy javascripting. 300% speed increase in drag and drop? I'll have to start using that somewhere...