The RedRock Micro microRRS Adapter Clamp (press release) marries a Really Right Stuff quick release clamp and a Redrock rod clamp/base plate, allowing quick attachment of cameras and lenses to Redrock HDSLR Rigs.
Rode has announced the Videomic Pro, a great new option for HDSLR video sound capture.
Visit the Videomic Pro product page for more information. (thanks Mike)
Zacuto has announced the DSLR Z-Cage (Zacuto product page). Check out some of the loaded-rig examples on this page.
Redrock Micro has announced the microEVF High Definition Electronic HDSLR Viewfinder.