Apple really wanted that iPhone5.com domain, and they've fought hard to get it. The company took its complaint to the World Intellectual Property Organization (WIPO), where they've successfully won its dispute over the iPhone5.com domain.
WIPO has displayed the domain as 'Terminated' on its website, with the domain owner expected to have relinquished ownership. The iPhone5.com domain is now held by brand protection agency Corporation Service Company, which could've been used by Apple to take ownership.
Even now that Apple have won their dispute, it's not clear whether Apple's new iPhone will actually be called 'iPhone 5', but it's definitely a step in the right direction of finding out. With so much news flying left, right and center over the new iPhone, I really hope we see something at their WWDC event next month.