The world's most famous spud will be transforming soon as Hasbro has unveiled Mr. Potato Head's newest ally in the war on frying - Optimash Prime.  Based on the heroic leader of the Autobots, Optimash Prime will join such seminal tots as Darth Tater, Spud Trooper and Artoo-Potatoo.  The new toy, which is scheduled to hit stores around the release of the film, was unveiled at the UK Toy Fair.  From the photos, it appears Optimash will take on the look of the original Optimus Prime instead of his updated look in the film.