The Gert board is way too expensive, $65 +$20 in shipping.
That was my initial impression, but it does have a bunch of drivers and additional peripherals in addition to the ATmega from an Arduino. Motor driver + A-D + D-A + mid-power transceivers + moderate power (relay/solenoid) drivers. It's an interesting demonstration of why the low price of RPI is misleading, though.
Also, IMNSHO, the whole "strapping area" concept is going to make it difficult for beginners to use.