According to a claim that was filed by Apple with the World Intellectual Property Organization, it wants to have the domain iPhone5.com. The case number for the filing titled D2012-0951 was spotted by some folks over at Fusible (via VentureBeat). Right now, the domain contains a forum on the upcoming next-gen iPhone which talks mostly about when the device will launch and rumored specifications about it.
Besides that, there is also a cornucopia of concept phones than make an appearance at the forum. The domain application by Apple shows that the company is changing up its view-points on domain purchasing, like after it was apparently slow at taking over the domain iPhone4.com as well as iPhone4s.com. Although this means that it might potentially reveal the name of the next-gen iPhone, it could also be that the company is just trying to control what domains might be associated with the Apple product given that iPhone4s.com actually contained pornographic material before Apple took it over.