Pentax 645D will have dual concurrent SDHC slots says the teaser

Japanese website DC Watch has translated the latest teaser by Pentax Japan. According to the computer-translation, the dual-SDHC slots will allow your choice of concurrent or sequential writes. That means you can reduce the risk of losing critical images because of a single faulty memory card. Of course if the data gets corrupted before it reaches the cards, this won't help.

The teaser also says more details will be revealed at the Japanese CP+ trade show (english-speaking website) which runs from March 11 to 13, and it is preceded by the Focus on Imaging show in the UK from March 7 to 10.