Rumours that Apple plans an update for its iMac and Mac mini range continue to percolate as the company’s first Q10 quarter gets set to start.

Reports claim Apple’s already informing sales channels that several of its desktop Macs are heading into short supply as the company presumably preps its new SKUs. AppleInsider claims Apple Retail is warning outlets that further orders on many models will not be met, specifically for the Mac mini and iMac range.

Amazon also appears to be out of stock, directing orders to third party resellers (such as J&R Music and Computer World, DataVision Computer Video or Techno Intelligence), rather than honouring them itself. Interestingly, current models are available through the giant retailer at a variety of discounts, up to $30 less than book price in some casesbr />
Similar availability constraints are impacting supply of the Mac mini, with orders again directed toward third-party resellers.

Apple’s own retail store, however, continues to promise new order iMacs will ship within 24-hours.

Apple last update these two products on March 3, 2009, when it reduced prices, offering the 24-inch model at the same price as the previous 20-inch iMac.

Previous claims have suggested the redesigned all–in–one could come crammed with a SD card reader, quad-core processors and even Intel’s Xeon inside, said Mac4Ever. The site also predicted an aluminium remote control and a touch-enabled mouse would make their debut with the new desktop all-in-one.

Earlier this month, Wedge Partners predicted a redesigned iMac with a “thinner, organic design, likely with smoothed or rounded edges.

The firm also expects “new, lower price points to drive demand and create a meaningful competitive threat” to coming PCs based on Windows 7 as well as to the booming netbook segment. “We believe these new designs and price points will help Apple achieve a 3 million unit quarter for Macs in [calendar] Q4,” the analysts said.

Which would make a strong start for Apple’s new financial year, as it prepares next year’s purported tablet release.

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