PrimeUI is a an open source set of Rich UI Widgets based on jQuery UI. 

0.9 release introduces 6 new widgets making 27 widgets in total.

Demos are available at;

http://www.primefaces.org/prime-ui/

Please read official announcement for detailed information.

http://blog.primefaces.org/?p=2628

P.S. I hope this is not the wrong forum, I couldn't find a forum like jQuery Extensions so apologies if it is not the best place to post this.