Where is iBooks for Mac?
I'd say I'm surprised there's no iBooks for Mac yet, but Apple seems to not take obvious courses of action fairly frequently, for reasons that are sometimes never known. Why do you think Apple hasn't released a version of iBooks for Mac? I wouldn't think the cost of porting the iOS app would be that high, so the only reasons I can think of are that they either think it would be a bad business move for some reason, or they're completely rewriting the app to provide some amazing new desktop experience. Neither of these reasons make much sense to me, though.