Photron and Vision Research announced new fast cameras toward 2010 NAB Show in Las Vegas. Both use custom designed sensors
Business Wire: Photron Fastcam BC2 delivers 1000fps at its native 4MP resolution 2048x2048 or up to 2000fps at 1920x1080 HD resolution (no word "progressive" though). The camera appears to be a broadcaster's version of Fastcam SA2 announced a year ago, I believe.
Marketwire: Vision Research announced Phantom Flex featuring 4MP CMOS sensor with resolution of 2560x1600. When set to Standard Mode the maximum recording speed of 1,560fps at 4MP resolution. In full-HD resolution (1920x1080), the Phantom Flex offers a maximum recording speed of 2,800fps. When reduced to 720p HD resolution (1280x720), the Phantom Flex offers a maximum recording speed of 6,100fps. The camera can go even faster, recording at 13,000 fps at 640x480, also in Standard Mode.
Other than Standard, there is also HQ Mode, where the Vision Research's Flex trades speed for enhanced image quality; the camera still offers impressive maximum recording speeds of 780 fps at 2560x1600, 1,390 fps at 1920x1080, and 3,000 fps at 1280x720 resolutions. HQ Mode is said to employ a proprietary multi-sampling image enhancement technology to deliver stable blacks, low noise, higher dynamic range and repeatable shots over the full range of supported resolutions, frame rates, and temperatures.