A rumor from French Mac enthusiast site MacBidouille has insisted that on top of Apple's previous warning that the new iMac model announced last month would see "significant shortages," manufacturing difficulties may push the debut of the thinner, optical drive-less iMac models into 2013. Currently, Apple's US website continues to list the 21.5-inch model as available later this month, with the 27-inch model coming next month.
