Already this week, we've brought you news of the new app, praised the (er) launch of , noted the addition of gas price searches to , and offered you roundups of the best and

Speaking of summer movies, Pixar's new flick, Brave, has two new associated apps: The $7 and the $2 But it's not all fun and games out there--productivity apps and also received important updates this week. And bargain hunters who like Groupon-style deals might want to check out the new app.

Other new and updated apps that caught our eye this week:

: This was one of the first--and still one of the best--PDF readers for the iPad, and developer Yuri Selukoff keeps finding ways to improve the $5 app. In the case of the latest update, he does so by adding new tools, among them an eraser to manually delete freehand drawings you've made using the app's annotation tool. Users can also download and save HTML 5 videos from the iPad's Safari browser using a special bookmark activated in the app's settings. GoodReader's updates also include new features that make it easier to upload PDFs and share them via Dropbox.

: The original app--which let users create music by blowing into their iPhone--was called "one of today's most interesting iPhone music making applications" by own Christopher Breen, way back in 2008. Smule has made a number of other notable music-oriented apps in the years since, but now the company has returned to its old stomping grounds with the release of the free for iPhone--a "sequel" app sold separately from the original. The new app has a "song mode" that helps users learn to play popular tunes. The app also features a number of in-app purchase options in the form of a series of "tune packs," which feature songs that can be played by users. If you've ever wanted to emulate Zamfir, , now's your chance.