I've got a pretty serious data logging need and it appears that perhaps the new Due can keep up, but then I read the specs on the pcDuino. It's similar to the Due and Raspberry Pi, but is clocked at 1Ghz, has 2Gb of Flash, 1Gb of DRAM, HDMI and Wifi interface and it can run Arduino shields with a hardware interface, but subject to the 3.3v issues the Due has. The price is about $60. The following two videos make me think it could be my answer:
I've even heard GCC is onboard. Does anyone have any experience programming it?