Microsoft chief operating officer Kevin Turner skewered Apple's missteps with the iPhone 4 in his talk at the Windows Partner Conference today. He noted that Windows Phone 7 devices shouldn't have problems with holding the phone and likened the iPhone 4 to Microsoft's own experiences with Windows Vista, where development problems helped competitors gain ground. A stumble by Apple in public perception would help Windows Phone 7 attract customers just as Microsoft itself needs to restore its image.