Earlier today, Brandon Satrom announced the Q1 2014 Beta release of Kendo UI. It's definitely worth checking out.
It's especially worth noting that we've also provided the ability to edit every example we have for our Kendo UI demos:
See the "Edit this example" button (above)? Click that and you'll be taken to the Kendo UI Scratchpad to fiddle around with the demo.
Nice, eh? Go check it out for yourself.