In a recent research note, Deutsche Bank Chris Whitmore predicts Apple may unveil two iPhone models, an iPhone 4S and an iPhone 5 this Fall. Whitmore argues that RIM and Nokia, two bastions of the mid-range mobile phone market, are struggling and Apple could grab a huge chunk of their market share with an inexpensive iPhone. Whitmore believes Apple is producing an iPhone 4S that is unlocked and priced around $349. This lower-priced model, which has been rumored before, will include a pre-paid voice plan that will entice customers to jump on the Apple bandwagon. Apple will also introduce an iPhone 5 which is