Hi,
Since compatibility has been a discussed issue on the list, I thought I'd pass along a posting on the issue. Go to the following link and scroll down the page (page 8) to see a post by madmanchan. Eric Chan is an imaging scientist working at Adobe (one of the principals along with Thomas Knoll working on the ACR processing pipeline).
http://www.luminous-landscape.com/forum/index.php?topic=80687.140;topicseen
Jim