Computer and gadget repair site iFixit has performed the requisite teardown of Apple's new 21.5-inch iMac, gauging the new desktop's internals as well as the ease in repairing it. The repair company positive things to say about Apple's new desktop, calling its internals "commendable." Its repairability, though, is quite another story, with the 21.5-inch all-in-one scoring just 3 out of a possible 10 on iFixit's scale.