Consulting house MOTO Development Group has performed an analysis of smartphone touchscreen sensitivity, putting the iPhone up against three Android-powered rivals: the HTC Droid Eris, the Motorola Droid, and the newly released Google Nexus One. The test used a drawing app to attempt to draw straight lines in a diamond pattern across each screen using both light and medium finger pressure. As the report notes, “on inferior touchscreens, it’s…