Two Scottish companies, Picsel (Research) Ltd. and Picsel Technologies Ltd. have filed a patent infringement lawsuit against Apple in the U.S. District Court of Delaware.  The lawsuit claims that the iPhone and iPod Touch use screen rendering technology that infringes on their patents. Picsel (Research) Ltd. is the owner of the entire right, title and interest in and to U.S. Patent No. 7,009,626 entitled “Systems and Methods for Generating Visual Representations of Graphical Data and Digital Document Processing”