Ok - I just ref'd an old thread of mine and Camaromurph has the skinny:
"As long as you get the 4-board Radarscope pcb it will work with the standard DK PP-7B power supply. You will need the additional 7P power cable not used with the DK 2-board set but the power supply is set up for it.
If you get the 5-board Radarscope pcb you will need the earlier PP-7A power supply which has connection for both the 7P power cable and an additional 6P power cable.
Murph "
So it will work, you just need to obtain a 7A power supply - and it uses 2 additional connectors opposed to a DK board.
I have the B version - so I'm looking for the 4 stack unless someone throws me an awesome deal on a board, PSU, cable combo.