I think Velcro is right; back in the time before the 5121e they were evaluating various ways of creating a "next generation Efika" (LimePC kind of devices) based on the 5200b. I think one idea was to use a FPGA, another was to use a traditional GPU. At that time they chose XGI, much because of getting access to official tech documentation and driver source code etc, something that the big GPU suppliers are reluctant to offer (to say the least). But then the 5121e entered the picture. And then it went away. And now it's all about the ARM SoC i.MX515 instead, which will do everything the 5121e did, and *more* on top of that. The goal has been pretty much the same, but the paths leading there has changed.