Last Updated: February 13th, 2014
Update: Motorola is saying that the OTA was delayed slightly. It should start rolling out today 2/13.
Right on the heels of the T-Mobile update, US Cellular's Moto X is getting the bump up to version 4.4.2. This OTA started hitting a few devices last week, but now it should be rolling out to everyone. Head to the settings and check your update menu at your earliest convenience.
Last Updated: January 31st, 2014
Sony bumped the Xperia Z1 and Z Ultra to Android 4.3 in December, but a new software build is starting to make its way to users starting today. This one has build number 14.2.A.1.136, but it's still Android 4.3 – Sony is just doing a little housekeeping.