Rumors about a Leica mount cartridge for the Ricoh GRX system have been floating around for a while. A prototype was shown at the CP+ show last year. AP just broke the news that the unit is about to be announced – it will have a 12.9MP 23.6×15.7mm APS-C size CMOS sensor and a newly-developed focal plane shutter. The unit is expected to be released in autumn of 2011.
