A lot of people are rightfully concerned that Apple is trying to lock schools into their own platform by enticing them with very appealing goodies. The strategy is simple: once you are vested in a platform it becomes very expensive and very difficult to move to another vendor. Better yet, if publishers have everything vested in a platform, other competing platforms will be locked out of the market. Incidentally, this criticism isn't targeted solely at Apple. A lot of vendors pursue it (Amazon, IBM, Microsoft all come to mind). It is probably safe to say that developing a platform and opening it up to the competition is an exception these days (Adobe's PDF/PS, Phillips' CD, Sun's Java come to mind).