An update next month to Apples flagship digital media player may outfit the device in an additional color but may otherwise represent a rather modest refresh when compared to years past, AppleInsider has been told. Adding a bit more color to the matter are a series of recent industry checks by Concord Securities analyst Ming-Chi Kuo, who told AppleInsider that the iPod touch is the only one of Apples four iPod product lines that continues to show any semblance of unit growth heading into the second half of the year. » White iPod Touch In 2011 But Minor Spec Updates