WhoSampled 1.0 ($3) - WhoSampled is a new music discovery app that finds information on the songs stored in your library. The app currently has a database of over 150,000 tracks and 50,000 artists, as well as a Now Playing feature that enables users to discover all the musical connections to a song they are listening to. [Download - 4.8MB]

TubePad 2.0 ($1) - TubePad 2.0 is designed as a YouTube downloader and player for the iPhone, iPad, and iPod touch. Features of the upgrade range from an improved video player and download manager, to support for syncing favorites, playlists, and subscriptions with your YouTube account. [Download - 9.3MB]

Gemibears 1.0 ($2) - Piston Games recently launched Gemibears HD, a new match-two puzzle game with over 60 levels to complete and five planets to explore. The game has players try to connect two bear halves of the same color in order to make the bear whole. Features include Game Center support and multiple playing modes. [Download - 110MB]

ExpenSense 2.14 ($1) - A new 2.14 version of ExpenSense, a tool for tracking and controlling expenses, is now available from the App Store. With this upgrade comes the ability to backup and restore information through e-mail, as well as support for new recurring cycles such as three weeks, two months, and five months. [Download - 4.4MB]

Action Movie FX 1.2 (free) - Action Movie FX allows users to add Hollywood style FX to movies shot with iOS devices. Included in the new 1.2 version are multiple user-interface improvements and bug fixes, along with a new free FX called Rough Terrain. Additionally, the update also offers improved performance on the iPod 4G. [Download - 33.2MB]