TechCrunch reports that NeoGAF supersleuth Rosti has uncovered a patent application filed by Nintendo Co., Ltd. for "Hand-held Video Game Platform Emulation," which was recently filed at the USPTO. The patent application focused on a software emulator that would let users play Game Boy, Game Boy Color and Game Boy Advance games on small display screens that have low capabilities, such as cell phones, PDAs , and chair display screens found on airplanes and trains.