“…a comparison of the new U.K. iTunes TOS (“U.K. Terms”) and the original U.S. iTunes TOS (“U.S. Terms”) on which they were based is illuminating. While the majority of the language in the both versions is identical, the differences between them are important, and illustrate that service providers can make things more fair for consumers, if they are forced to do so.”

http://www.eff.org/deeplinks/2010/01/terms-ab-use-dancing-different-itunes-differences-

Unilateral modification, licensing, warranties