Both motherboards are based on the new Intel P35 Bearlake chipset along with the ICH9R southbridge. This includes the DDR3 Edition Blitz Extreme motherboard and the DDR2 Edition Blitz Formula motherboard.
Here's a look at some of the features:
Fusion Block System - a watercooled northbridge (only on the Blitz Extreme). The motherboards feature a big full copper cooling system for the northbridge, southbridge, Crosslinx and MOSFETs with heatpipes.
Crosslinx technology - CrossFire support with two PCIe 8x lines
CPU Level UP - A new CPU overclocking feature. Screenshots indicate this feature doesn't use MHz but processor brands like "E6400", "E6550", "E6600" and "E6700".
COP EX - technology to protect the northbridge and southbridge from overheating
2-phase DDR including Voltminder LEDs and an external LCD post display.