45% of U.S. consumers eligible to upgrade their phones over the next 3 months intend to buy an iPhone (NASDAQ:AAPL), according to a Baird survey of 2K U.S. Web users. 31% are undecided, and just 22% are set on buying an Android (NASDAQ:GOOG) phone. Also 77% of iPhone owners plan to buy another one, whereas only 48% of Android users are promising to remain loyal - 34% are undecided, and 17% say they want to buy an iPhone. (Piper survey) (Apple customer loyalty) (iPhone U.S. share gains)