Off late, Apple began notifying its sales channels "not to expect any further stock of entry level all-in-one 21.5-inch, 3.06GHz iMac desktops," implying that production has ceased, as the company prepares draw down inventories ahead of introducing new models in coming weeks.
Apple has been plotting upcoming iMac refresh since last year. Potential configurations included a dual-core Core i5 model, as well as quad-core Core i5 and Core i7 configurations. According to sources, new iMacs would be first Macs to employ Intel's Core i3 processor at low-end. That said, it's not clear whether Apple has recently decided to alter any of these plans, especially in light of shortages of Intel's less brawny Core offerings. Also unconfirmed is a recent report that the new iMacs would usher in USB 3.0 support and a faster FireWire interface.