The Canon 5D Mark III was officially announced March 2, 2012.  It is available at B&H Photo and Adorama.

Canon 5D Mark III Key Specifications

• 22mp
• 6fps
• 61pt AF
• 1080p HD video capture at 24p/25p/30p
• 720p HD video capture at 60p/50p
• ISO 100-25,600 (expandable to 102,400)
• 3.2″ LCD
• Dual CF/SD Card Slots
• Headphone Output

The US retail price is $3500 for the body only, or $4200 with the 24-105mm f/4L IS lens.

Announced alongside the 5D Mark III were the following:

• Wireless File Transmitter WFT-E7A for $849.99.
• GPS Receiver GP-E2 for $390.00.
• Battery Grip BG-E11 for $490.00.
• Speedlite 600EX-RT radio transmitting flash for $629.99.
• Speedlite Transmitter ST-E3-RT radio transmitter for $470.00.