After initial rumor reports and subsequent user reports about speed upgraded Mac Minis quietly making their way into Apple's distribution chain, eWeek confirmed updates with Apple.
Apple is not re-labeling the Mac Minis -- even with last-minute stickers -- so buyers have no way of knowing if they are getting what's marked on the box, or if it's something better.
Clearing inventory is speculated as a possible reason for the unadvertised upgrades.
The upgraded specs include 1.33GHz and 1.5GHz processor speeds up from 1.25/1.42GHz that is currently advertised on Apple's site.