How Will Dropbox Manage To Dish Out All The Free Space That Is Promised In The Space Race?

They won't. Dropbox doesn't own datacenters for its data, since everything is actually stored on Amazon S3. Because of this, Dropbox only pays for the data that is actually stored on the service, and not the space that is theoretically available. If terabytes of data suddenly start being added to Dropbox, this will be Amazon's problem, but Amazon can probably handle this because it handles file storage for many, many other companies, and thus a few extra terabytes of storage might not be too har...