Apple's (AAPL +2.2%) iPhone 4 antenna design flaw could whack 20% off potential U.S. sales - or...

|About: Apple Inc. (AAPL)|By:, SA News Editor

Apple's (AAPL +2.2%) iPhone 4 antenna design flaw could whack 20% off potential U.S. sales - or $0.11/share in the current quarter - because customers are concerned about its affect on signal strength, according to a Piper Jaffray analysis. On the other hand, a UBS analyst predicts 28M iPad sales for 2011 and raises his price target to $350/share.