David Sleight:

The question now before platform makers is whether they will begin exploring alternatives or will pass the pain along to users in the form of unsustainably large issue sizes. The three likely options on the table for them are: 1) Do nothing; 2) Start building dynamic layout and text rendering engines; or 3) Begin basing their platforms on Web technologies.

And maybe I’m missing something here, but wouldn’t iBooks Author also work as a magazine publishing tool?

A Retina Display Reckoning for Magazine Publishers