On Monday, Apple unveiled a new, $999 “education only” 21.5-inch iMac. The new iMac—which is offered only to authorized education purchasers, not educational customers buying through Apple’s public-facing education store, is relatively cheaper  but less powerful than the $1200 base 21.5-inch iMac offered to all consumers. In contradiction to $1200 iMac, which sports a 2.6GHz