It may sound patently obvious at this point, but there's still cause to celebrate -- Sony's streaming subscription music service, Music Unlimited, is headed to both the PlayStation Portable and its pair of divergent spiritual successors the Next Generation Portable and Sony Ericsson's Xperia Play. Eurogamer sat down with Sony Network Entertainment VP Shawn Layden, who spread the news readily, confirming that the service would be activated (at least in the UK) on PlayStation Portable "in a matter of week
