Popular cloud-storage startup Dropbox said today at the Dropbox Open London conference that it's working to let you access your files through the Finder as you normally would, but without taking up storage space on a Mac until they're actually needed—no matter how small your hard disk, no matter how much stuff's in your Dropbox.
Code-named Project Infinite, the initiative will let you decide which files in your Dropbox will be instantly downloaded and which ones will be referenced.