A series of ads on the pages of Australian tech site PC Authority have possibly signaled an upcoming update to Apple's pro desktops and notebooks. Ads for the MacBook Air, MacBook Pro and Mac Pro show all three systems starting at higher prices than they do today. The MacBook Pro would cost A$1,899, the smallest hike but a jump from A$1,599; the MacBook Air would increase from A$1,999 to A$2,399; the Mac Pro would see the largest leap by moving from A$3,599 to A$4,499.