It's the same HTC One from a hardware standpoint, but under the hood, it's getting some nice new enhancements as part of the Android 4.2.2 update.  Weighing in at over 400 MB and rolling out internationally to unlocked units, Android 4.2 brings notification bar toggles, a physical battery percentage indicator (FINALLY!), new camera enhancements, home button options (to get rid of the pesky black menu button bar at the bottom), and a number of other bug fixes.  It's speedy, brings the One up to software par with the Galaxy S 4, and keeps the HTC Sense 5 look and feel up front.  It's a great update - hopefully the carrier variants will receive it sooner rather than later.