Could tiny ebooks really upset the mighty Apple cart?

You wouldn't think that Apple had any problems right now. Its share price is so grossly high that it is ranked as the most valuable company in the world. Fans will queue up in their thousands for the chance to buy its latest iDevice – the new iPad – so much so that there won't be anywhere nearly enough devices in stock to satisfy demand on launch day.
And finally, none of the myriad patent litigation cases Apple is involved in have managed to do it any serious damage, or much damage at all.

But in recent weeks, Apple seems to be courting disaster in a rather surprising arena: ebooks.
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