It appears that Apple is throwing caution to the wind and opening themselves up for a slew of lawsuits over… iBooks. Really? Even if a corporation doesn’t like us messing with their perfect OS, they can’t stop us from doing what’s legal. Sigh. Someone else who doesn't understand our rights include the right to enter into a contract that places burdens on both parties. There's no legal or moral reason that Apple can't…
For example you can't sell yourself into slavery and you can't surrender your right to reverse engineer a technology (in most developed countries).
Anti-competitive practices is another area where the law has intervened in these sort of situations in the past. For example in the case of printer ink refills (although the law has chosen not to intervene in the console market).