Hey all,
I was one of the two prototype buyers if the ATX-Pi and I have to say it is a solid little device and works exactly as he says. Since it was relatively cheap I took a chance and sent the BTC to ik2013 directly, no escrow. 3 days later I had the board in my mailbox.
In my opinion he is a solid guy with a decent little device. It's worth the premium if you don't want to do you own programming of a device.