iMac availability is rapidly shrinking, say three different sources, including two in the US and one in an unidentified Asian country. Supplies of 21- and 27-inch models are listed as "constrained" according to leaked information, with no ETA on when new shipments might be delivered to a "very large" unspecified region. To this the US sources add that iMac components are in short supply, particularly GPUs and hard drives.
