Verizon today started up a sale on its smartphone lineup ahead of its iPhone launch. Some of its most important devices, including the HTC Droid Incredible, Motorola Droid 2 R2-D2, and both Samsung's Continuum and Fascinate, have had their prices drop by as much as half to $100. The company is promising 10 days of "sweet deals" that line up with the iPhone's February 10 date.