This is going to be another post of our concept phone series. This time we will present to you the Xperia Ultima which is brought to us by J. Haverlant over at ConceptPhones. This concept phone that is making its rounds over the Internet comes with a 12.1 MP camera complete with an Exmor R capture. Its back side with the sliding protective cover for the lens reminds us of some of the great Cyber-shot phone models of Sony Ericsson such as the K500.