Storage: 2 GB Free, Pay options for 50 GB and 100 GB
Desktop Support: Windows XP or later, Mac OSX 10.4 or later, Ubuntu 7.10 or later, Fedora Core 9 or later
Browser Support: IE 7 or later, Safari 3 or later, Firefox 3 or later, Opera 9 or later
Mobile Clients: iOS 3.1 or later, Android 1.5 (Cupcake) or later, Blackberry OS 4.5 or later
Sharing data is as easy as identifying what you want to share and the recipients. You can access sharing capabilities via your desktop as well as a mobile device. The only downside is that shared data appears in the root of your Dropbox and not necessarily where you might want to organize it.
Starting you off at 2 GB of free storage, Dropbox gives you the opportunity to earn up to an additional 16 GB of free space. You get 250 MB of free space for every friend or family member who signs up for a free account, using you as a reference. Fee-based Dropbox options come with 50 GB or 100 GB of additional storage. Version control options are available for an additional charge.