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We already told you about some big app news today with an updated Twitter iOS client and the release of popular MMO Guild Wars 2 for Mac. Below is the rest of the notable apps and updates hitting the App Store today:

Pixelmator version 2.1.1: A big update today goes to version 2.1.1 of the Pixelmator Mac App Store app. The updated app includes a new Healing Tool that’s up to 20x faster than the previous version, UI improvements for Retina MacBooks, and a number of fixes and performance enhancements. A full list of changes is here.

Reeder version 3.0.4: The iOS Fever, Readability, and Google Reader client was updated today with a few new features. Included is enhancements bringing full support for iPhone 5 and iOS 6. The update means Facebook sharing becomes an iOS 6 only feature after updating. The developers have also included a fix for issues with Fever syncing and missing folders.

  • Apple tells developers to start submitting their OS X Mountain Lion apps (9to5mac.com)

Dropbox version 1.5.5: The Dropbox iOS app is updated to version 1.5.5 today with a few welcomed features. Included is support for Korean, the ability to share files quickly through Twitter and Facebook, and support for Apple’s AirPrint.

DataMan: The popular DataMan app for tracking data usage in real-time (usually $0.99) goes free today:

What’s New in Version 2.2.0

NEW IN THIS VERSION – Now DIRECTV goes anywhere you go. Get instant access to hit entertainment from HBO®, Cinemax®, Starz®, and Encore®, plus the latest DIRECTV CINEMA movies and more, whenever and wherever you want-at home or on the go. Go to the “Watch on iPhone” tab located on your home screen and select “Movies”, “TV Shows” or “Networks” to start watching now. – Watch Live TV channels on your iPhone within the home only. Just click on the “Live TV” tab. – View programs recently watched on your iPhone and resume where you left off. – Enhanced Search functionality to show results as you type, top picks of the week, and listings of programs that you can watch on your iPhone. – Discover the top shows and movies that people are currently talking about.