"Tokyo, Japan—Sony Corporation today announced the development of a 35mm full size (diagonal: 43.3mm/Type 2.7) 24.81 effective megapixel, ultra-high speed high image quality CMOS image sensor designed to meet the increasing requirement for rapid image capture and advanced picture quality within digital SLR cameras...."
Today Sony announced a new 24.81 megapixel full frame 35mm CMOS sensor. Sony manufactures the sensors used in Sony Alpha cameras as well as Nikon digital SLRs. They're aiming to begin production sometime this year.
via The Online Photographer