iAnnotate PDF 2.1 ($10) - A new updated version of the popular PDF annotation app for iPad is now available for download, iAnnotate PDF 2.1. Features of the update range from support for the new iPad's high-resolution Retina display, to improved highlighting functionality. The new release also offers smoother and faster pencil motions, as well as a new signature command that lets users zoom-in on a PDF and add a signature or written annotation. [Download - 15.7MB]

stroWings 2 1.0 ($2) - AstroWings 2 – space odyssey is a new arcade-style shooter game for the iPhone, iPad, and iPod touch. The game has players blasting their way through 13 stages of various enemy units, with a final boss battle at the end. To help improve their chances, players can also upgrade their fighter throughout the game, and choose from eight different weapons. Lastly, support is also offered for different difficulty modes and an online ranking system. [Download - 92.4MB]

360 Panorama 4.1 ($1) - Occipital has now launched 360 Panorama 4.1, an updated version of the iOS app that turns mobile devices into a fully featured 360 degree panoramic camera. With this release comes improved accuracy on iPhone 4S and iPad, along with support for the latest iPad's Retina display. Additional changes vary from improved German translation, to the added ability of auto-saving captured panoramas to an in-app panorama list. [Download - 3.8MB]

WallitApp 1.0.1 (free) - WallitApp 1.0.1 is a new version of the augmented reality tool that assigns virtual walls to physical places. Included in this update are a wide range of speed and performance enhancements, as well as a new “refresh” button for walls, and the added ability to see posts on all walls of the same kind around the world in a “super-wall”. The app has also become available world-wide, and includes additional walls around the world. [Download - 18.8MB]

ListBook 3.0 ($2) - Noidentity recently unveiled a major 3.0 upgrade for ListBook, it's to-do-list creation and management app for iOS devices. With this update ListBook becomes a universal app, now adding support for the iPad. The new release also offers a redesigned user interface, support for syncing data over iCloud, and a wide range of performance enhancements. [Download - 7.6MB]