Moto X now available on U.S. Cellular for $124 (after rebate)1
We've also heard that the Moto X could see a price drop of as much as $100 before the end of the year; and, while U.S. Cellular hasn't dropped the price officially, it is selling the Moto X on a discount. The Moto X on U.S. Cellular is being sold for $199, but it comes with a $75 "switcher bonus", which essentially works as a rebate. But, there is fine print. In order to get the rebate, you have to be enrolled for Device Protection for 60 days, and Device Protection actually just got a price bump a few days ago, so that will cost you $8.99 per month.
The Moto X is available online through U.S. Cellular right now, and will be in stores on Friday. That just leaves the Sprint release, and the T-Mobile release (aka the Google Play release).
source: U.S. Cellular