Apple has taken down the 21.5-inch iMac from the online Apple Store, leaving customers with the choice of either the 24-inch iMac or the Intel-based 27-inch iMac.A change that seemed inevitable with the introduction of the 24-inch iMac, Apple has quietly pulled from sale the 21.5-inch iMac. Customers visiting the online Apple Store will be able to choose from just two sizes of iMac, with the 24-inch iMac now the smallest available option in the catalog.Apple reduced the number of storage options for the 21.5-inch iMac in March, limiting the choices to 256GB SSD and a 1TB Fusion Drive. By April, there were reports of short supplies of the 21.5-inch model, ahead of the eventual launch of the 24-inch model.Read more