Zeroclick, LLC filed a lawsuit against Apple this week, alleging infringement of two patents (8,549,443 and 7,818,691) generally related to a touch-only graphical user interface (3:15-cv-04417). The complaint targets Apple touchscreen products, including the iPhone, iPad, and iPod Touch, specifically identifying their “slide-to-unlock” functionality as allegedly infringing the patents-in-suit.