We'd heard rumors that Motorola's Atrix 4G would cost $150, but after AT&T priced the handset at $200 we figured they were all for naught. The Shack begs to differ: it's just revealed it will sell the modular Tegra 2 superphone on Feburary 22nd for that original $150 price. That's with a two-year contract, of course, and a data plan on top, but that means you'll shave $50 off the sum AT&T is asking, or $20 off the combo deal with the (somewhat disappointing) laptop dock. Still, if history's any judge, we don't expect savings like this to be exclusive to RadioShack for long.