We're seeing reports pop up that discounting -- some of it heavy -- off the full retail prices of Windows Phone 7 handsets by third-party retailers this early in the game could be a sign of trouble for Microsoft, but realistically, you can't use that yardstick for guesstimating how well a phone (or a platform, in this case) is doing. Guys like Amazon, Wirefly, Simplexity (which runs a number of mobile stores, including Walmart), and Best Buy Mobile regularly undercut carriers' first-party pricing on handsets immediately following release -- or shortly thereafter -
