Good to see Microsoft throwing their support behind jQuery and committing resources to developing for it. Also interesting to see their proposal for including templating in the core of jQuery.
I currently use the excellent jTemplates plug-in for jQuery (even if the doco is a little hard to follow) and I’m a big fan of Client Side Templating as it minimises the amount of markup transmitted from server to client. Have a read of Encosia’s articles on the topic and I’m sure you’ll be converted too!