Every time Apple is going to launch a new model of a Mac, the current versions of it start to be unavailable in the company's store, or in the stores of retailers in the US or Europe. Although Apple didn't launch a new iMac at WWDC 2012, there were rumors that it would be released in the fall and now we have the first evidence who support these rumors. Several US retailers have run out of certain iMac models in stock and this suggests that Apple has already started producing a new iMac model, which should be available in stores in 1-2 months.
Every time an old Mac started to be unavailable in the stocks of Apple partners, a new model was launched at a maximum of 2 months away and the same thing will most likely happen now with the iMac. It is speculated that the product would have a Retina Display, processors from the Ivy Bridge series, USB 3.0, a new graphic chip and that's about it. Those who were waiting for an iMac with a modified design should wait until next year, when Apple is expected to bring this device to the market.
