According to PiperJaffray analyst Gene Munster, Apple may sell only 9.5 million iPods in its third fiscal quarter, falling short of the consensus estimate of 9.8 million. Munster’s estimate is based on early April sales data from NPD. “While it is way too early to make a definitive call on June quarter iPod results, we have analyzed the first month of NPD data (April) for the quarter and found that it suggests iPod unit (sales) of around…