The Bilibot platform offers similar features to the Turtlebot and has an integrated "powerboard" that allows for a single charger. I believe the Turtlebot requires separate chargers for the computer and the iRobot Create, whereas the Bilibot has one plug to power/charge the create and the main computer supply. It also has Intel i3 processor that's a bit beefier than the dual-atom you get in the Turtlebot's netbook. Plus it ships with an arm (albeit very limited).
Unfortunately, other than basic setup instructions the documentation/tutorials for the Bilibot platform are severely lacking. As a contributing member of the project, I'm working with my local university to help find and fix some holes in that area over the upcoming semester (they purchased a number of them as general-purpose ROS machines).