That's all I hear about from the guys at my work who are currently doing live coverage of the national robotics championship in georgia.

http://science.ksc.nasa.gov/robotics/

you can see the challenges at that link.  My company is behind the cameras audio and lighting.  NASA is supporting the multiple 100mb/s Internet feeds :o

it's pretty cool but they don't do aibo soccer anymore :(. Seeing that the first tome made me want an aibo!  Then I got one,  now I think I'm selling him :(