From Appleinsider...
Perhaps Apple will announce updates for Mac Mini's and Mac Pro's together?
Supply of Apple's existing Mac mini lineup has become increasingly constrained over the past two weeks as the company prepares to introduce refreshed models that may serve as a harbinger for some new I/O technology on the Mac.
The shortage has been verified four times over by AppleInsider, which has received numerous reports that suggest the constraints are indicative of new models on the horizon, rather than intermittent delays resulting from the onset of the back-to-school buying season, which sometimes sees Apple curb the flow of Macs to its distribution channels in favor of filling large orders to universities.
For example, one buyer for a higher-ed institution placed a bulk order for Mac minis two weeks ago through the school's Apple rep, noting that receipt of the machines was required by June 1. Although the Apple representative initially indicated that the delivery date would not be a problem, the buyer last week saw his ETA pushed out from 1-3 business days to a definitive date of June 14.
Perhaps Apple will announce updates for Mac Mini's and Mac Pro's together?