Nova Launcher is one of the most popular home screen replacements out there, and the developers are hard at work ensuring that this doesn't change any time soon. The latest update introduces even more ways to customize every aspect of your launcher's appearance. Anyone who makes the jump to version 2.2 will gain the ability to add backgrounds to their docks, customize the look of their unread badges, and dabble with new scroll effects.
The long-awaited Carbon for Twitter app landed on the Play Store a few days ago, but some were of the opinion that it wasn't quite finished yet. This happens in software development. Nothing to be worried about. What should cause worry is if problems persist for months or years at a time (*coughGoogleVoicecough*). On that note, it should be very encouraging that the developers have already rolled out an update that includes a variety of bug fixes.