Dropbox has accommodated new update via the version 2.1

For those who unfamiliar, Dropbox is an App available both on mobile and web, which allows you to backup your photos, docs, and videos anywhere and share them easily. This means also that, you can access any file you save to your Dropbox from all your computers, iPhone, iPad and on the Dropbox website.
The application includes major features like:

• Access all your photos, docs and videos from any device.
• free 2 GB of space
• automatically save photos and videos

• Share a link to even your biggest files
• Add files to your "Favorites"

Henceforth the new version 2.1 available since February 15, 2013 brings

• View your PDFs in an all-new PDF viewer
• Receive a push notification when someone shares a folder with you
• Sort your files by date modified