Jayrock seems like a really nice light-weight alternative to ajax.pro We are still stuck on version 5.7.22.2, and the latest version seems to force us to redo a lot of the current code, because of many internal changes. But since [scriptservice] is pretty much mature now, i guess that will be the road for us to go.
Kinda looks like we are shifting our dependencies from server side support libraries to client side support libraries ..but i got a warm feeling knowing Resig is a kick butt javascript developer & working for mozilla (on firebug now) !:) - Robert