The HRP-2m Choromet can lay down and stand-up by itself. The 35cm tall robot can also stand on one leg.
The HRP-2m Choromet runs real-time Linux on a 240Mhz CPU (SH-4). This robot has 20 degrees of freedom, a gyro sensor, acceleration sensor and an Ethernet port.
On this page is a video showing the HRP-2m Choromet robot in action.
I think the same team showed in January a much taller anime inspired robot called HRP-2 Promet. The design is very similar. Only difference is that the HRP-2 is 154cm tall.The HRP-2m Choromet will cost about 500,000 yen (~$4,400).
More details Mainichi and on NikkeiPB. Via digg.