In the wireless industry, $100 is a rather magical psychological barrier -- a price point below which consumers generally have a much easier time pulling the trigger on a sweet upgrade. So when you offer a phone for $200, a percentage of your target demographic is generally going to drop out of the race with cries of "too rich for my blood." No worries with this new HTC HD2 for T-Mobile, though, because it turns out that a number of resellers are already discounting the phone right down into that $99.9