Other talks I immensly enjoyed were "Getting Functional with (fab)" by Jed Schmidt. His slides were absolutely exceptional and the talk was both very entertaining and fascinatingly detailed. You can watch his talk here. If you haven't checked out (fab) yet, you should do so right now!
Another fantastic talk was "Socket.IO: WebSockets for everyone" by Guillermo Rauch. Socket.IO is a library that enables websockets for (almost) every browser, even IE 5.5(!). A fantastic talk about an equally fantastic library. Definitely check out the demo code for this talk.
So what's left to say? I can't wait for JSConf.eu 2011!