The EvoShift 4G is everything but announced; besides that, nothing is stopping Amazon from getting the pre-orders in and ready. The image above is a screen shot of Amazon.comís Evo Shift 4G pre-order page. The device has been leaked picture wise for a while now, and we are expecting it to be official next week at CES next week and not a moment before.
This pre-order page says they are selling the device for $199, but radioshack says itís priced at $149.99. This means either Radioshack is selling this on a discount or someone leaked a bad ad. Whatever this means, we are just happy one more 4G device will grace our stores soon.

Source (Amazon puts unannounced, unofficial Evo Shift 4G up for preorder for $199.99 | Android Central)