Dropbox for iPhone and iPad updated with new PDF-viewer, push notifications for shared folders, and more

The Dropbox app for iPhone and iPad has been updated to version 2.1, and added features include a new PDF viewer to better render your portable document files, as well as push notifications to alert you to shared folders, and the ability to sort files by date modified.

If you're a Dropbox user, get the update now. If you haven't tried out Dropbox yet, it's the most popular online file store for iOS, and you get a free account, grab the free app, and give it a try.

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