MOTO Development Group in a study published Saturday has given the iPhone top marks for the quality of its touchscreen. Comparing it against multiple Android phones -- including the Nexus One, Droid and Droid Eris -- the hardware consultants found Apple's screen is the most accurate and lets users draw smooth, straight lines regardless of how quickly the finger moves or how much of it is in contact with the display. The Droid Eris and Nexus One were next with some erratic behavior with partial contact, while the Droid produced a similar effect no matter what contact
