Wow... 17 unattached GPIO pins off the CPU. I wonder if they just ran out of room to put them on the board, or if they have lack alternate pin-specific capabilities that the used pins have.<p>I kind of wish there was a harder to use card edge connector for these - they could likely implement an additional 2 SD card slots or similar I/O.
is there anybody specialized in circuit design? i mean, how hard is it to build a cheap Pi equivalent board? If this is so popular, why no commercial version?