If a rolling stone gathers no moss, then the rumors surrounding Nokia's ultra-low-budget Lumia 510 have grown very mossy indeed. The folks over at GSMArena have snagged this glare-a-riffic snap of the prospective handset catching some rays in the finest of blurrycam traditions. Their tipster is also reiterating the specs we've seen before, talking up a Windows 7.8 handset with 256MB RAM, 800MHz CPU and 5-megapixel camera that's destined to stand between the Asha and