I just got my newest toy: the USB Armory by Inverse Path. Rather then me tell you about it, I’ll let the creators do that:
It has 512mb of ram, a Cortex A8 800Mhz CPU, and uses a micro SD card for storage.
Here is the official website, and here is the Crowd Supply project (which already ended).
I just got mine yesterday, and will spend some time using it and update you on the progress.