While retagging this question to remove the 'iBooks' tag (which is clearly associated with Apple's e-book business, not their old iBook laptop line), I noticed that the singular iBook tag is frequently associated with both the books and laptop.
There are too many questions there (or so it seems to me) to do a quick and obvious reconciliation, so I wanted to ask for consensus: should the iBook tag be applied to the eponymous laptop, should it be a synonym for iBooks, both, neither?
I prefer the former option, since the older-model laptops carried the trade name iBook, while I've rarely ever heard an Apple-provided e-book referred to in the singular as an "iBook".