Mozilla and Skype also joined in to endorse a request by the Electronic Frontier Foundation (EFF) for an exemption to the Digital Millennium Copyright Act related to iPhone jailbreaking --which is a practice that Apple Inc. considers against the law.

Mozilla, the maker of Firefox,

insists that Apple would probably not allow it to offer a mobile version of Firefox for the iPhone, based on its reading of the iPhone SDK, which forbids the installation of alternative runtimes.

While Skype, a prominent early adopter in iPhone software development,

stating "copyright law should not interfere with a user using his or her phone to run Skype and enjoy the benefits of low- or no-cost long-distance and international calling."

[via Apple Insider]