It looks like Apple (AAPL +2.8%) can be added to the list of retailers to have turned in a strong Black Friday (I, II). Piper's Apple Store checks found iPad sales to be up 68% Y/Y, and Mac sales up 25%. Meanwhile, citing a company source, 9to5 Mac claims Apple blew past its internal Black Friday forecast by 7 P.M. Sizable discounts (by Apple's standards, anyway) doubtlessly played a role.