Apple is facing new problems and issues on the production of the iMac 27" Core i5 and i7, and is already announcing to its customers that it will not be able to ship the unit for the expected delivery date.
According to one of our sources, the company completely stopped the iMac 27" assembling lines, the production will not resume before Apple has finally found a reliable and definitive fix for the remaining past (flickering and flashing display) and new issues (yellowish panel and flickering display) affecting those models. As usual, we can only expect that Apple will quickly find a firmware/software solution for the current owners of iMac 27" having such issues, or maybe it would launch a more general recall campaign which would cost them more money but strengthen their image of a company taking great care of customer satisfaction.