Dropbox Infinite is going to essentially have full access to your computer

On Tuesday, Dropbox published more details about upcoming changes to the company's desktop client that will allow users to access all of the content in their account as if it is stored on their own machine, no matter how small the hard-disk on their computer.

In other words, you can browse through your own file system and have direct access to your cloud storage, without having to go and open a web browser nor worry about filling up your hard-drive.