The Power Review: Now in the fifth year of the portable console's lifecycle, the PSP has made huge strides over the years. From humble beginnings, Sony has become the first console to successfully survive against the reigning portable industry juggernaut, Nintendo. With each iteration of the PSP, Sony has improved its functionality: internet interface, VOIP calling, PSP Plus (Resistance Retribution) just to name a few. But just as people are starting to doubt whether this console really has the legs to make it, Sony has turned their lineup into high gear.
