From Hamsterworks Wiki!
One of the more unique features of this board is that it doesn't have any on-board programming interface, but is programmed by the connected Raspberry Pi using a simple "logi_loader" application. The prototype does in fact have unpopulated pads for a microcontroller to program the FPGA, but I don't think they will end up on the production board.
One compelling feature is the Micro 48LC16M16A2 - a 256Mb (32MB) 133 MHz SDRAM chip - four times what is on the Papilio Pro.
I developed my Simple SDRAM Controller for the Logi-Pi and Papilio Pro on it.