Today July 26′th 2010 great news is passed down from the courts thanks to the EFF Electronic Frontier Foundation @ eff.org who won three critical exemptions to the Digital Millennium Copyright Act today which basically state that its not against copyright laws to use clips from copyrighted material in amateur non profit videos and it is also not against copyright law to jailbreak and unlock iPhones to use them on other carriers and install third party applications on them.

Sources: eff.org