Tom Hogarty announced that Camera Raw 5.7 and Lightroom 2.7 are now available on  th Adobe Labs site.(Camera Raw 5.7, Lightroom 2.7) The new releases include new camera support for the following models:

• Canon EOS 550D (Digital Rebel T2i/ EOS Kiss X4 Digital)
• Kodak Z981
• Leaf Aptus-II 8
• Leaf Aptus-II 10R
• Mamiya DM40
• Olympus E-PL1
• Panasonic G2
• Panasonic G10
• Sony A450

http://blogs.adobe.com/lightroomjournal/2010/04/camera_raw_57_and_lightroom_27.html