I love the Twenty eleven WordPress theme. To get most of the great features this theme has and to attach a bit better look and feel, we created a child theme. So here are the sites using the same theme but bit different setups.
Plugistan - http://plugistan.com/
iPenelo.com - http://www.ipenelo.com/
Would you add/lose something. As the site servers are located in Estonia (EU) maybe those sites run bit slow in US? Please let me know if you find any problems and we'll fix those. Maybe one day it can be shared so others could take advantage too :-) (unless it's only pretty to my own eyes)