A little late, but I’m really impressed by the new iMac, which is such a refreshing design that it’s easily my favorite piece of Mac hardware in recent memory. The swivel arm is a deceptively simple breakthrough — its quiet shattering of the most basic of computing ergonomics will have far-reaching influence, I predict.In some ways, the new iMac trumps even the legions of hypothetical Mac designs posted by fans at sites likeThe Apple Collection and the Japanese Applele.