I was at the JavaOne Technical Keynote for the demonstration and they've specifically optimized the Raspberry Pi to use the GPU for rendering the 3D graphics.

I was at the JavaOne Technical Keynote for the demonstration and they've specifically optimized the Raspberry Pi to use the GPU for rendering the 3D graphics. Since a tablet is graphics intensive, this is why such a low-end processor seemed so performant ... it just doesn't take that much processor to handle touch events and tell the GPU what to draw or animate. P.S. Project Sumatra was announced at last year's JavaOne and allows Java to run parallelizable code on GPUs. (https://wiki.openjdk.java.net/display/Sumatra/Main https://wiki.openjdk.java.net/display/Sumatra/Main) P.P.S. The coolest interface to their chess server was a chess-playing robot, also built around a Raspberry Pi and using standard hobby servos. I believe that project will also be open-sourced. (http://www.youtube.com/watch?v=pYLvTebauwE&feature=youtube_gdata http://www.youtube.com/watch?v=pYLvTebauwE&feature=youtube_g...)