APPLE is blocking applications that compete with Apple and in recent weeks it came under fire for anti-competitive practices. Apple blocks Sony and it will maybe even block Amazon at the expense of people who buy electronic books and want their rented "content" to be portable. Apple's market lockdown (or lock-in) led Samba lawyer Carlo Piana to stating that there may be grounds for antitrust action:
Carlo Piana, a lawyer who worked on the EU case against Microsoft in the U.S., says that Apple's enforcement of in-app sales makes a strong argument for an anti-trust case.