The Mac App Store is just like the App Store for iPad, iPhone and iPod touch.
To receive an Autograph on your computer, you need Autograph Helper.
Automatically back up your data to your Dropbox account.
Built-in Mac software which does far more than just play tunes.
Easily update apps from App Store and other sources.
Mail offers an elegant full-screen interface that makes it easy to manage all your email from a single, ad-free inbox.
Free and open-source productivity suite.
A universal media player developed specifically for Mac OS X by Apple, Inc.