Responsive Twenty Ten is a child theme of the default WordPress theme. Dan Gavin and Sara Cannon of Birmingham, AL decided to go on a quest to make a responsive WordPress theme. Lo and behold, the twentyten child they’ve been dreaming of was already started! So, they developed this theme based off of Todd Halfpenny’s version here. With the addition of some special touches such as flexible images, nice margins, and some mobile image rules. Please download, take, use, change, and do whatever you want with it.