To: puborectalis  who wrote (1104 ) 9/11/2012 12:09:37 PM From: sylvester80  Respond to    iPhone 5 faces U.S. market share challenges, says analystLance Whitney news.cnet.com  iPhone 5  may have a tough time carving out a greater chunk of market share in the U.S., says NPD Group analyst Stephen Baker.launch tomorrow , the new  iPhone  is already being touted as a blockbuster product by many analysts. But in a blog posted today, Baker said he thinks the  iPhone 5 faces a different and more challenging enviroment  than the one encountered by the  iPhone 4  or even 4S.U.S. smartphone sales rose just 9 percent  in the second quarter, with most of that growth coming from prepaid phones.