A newer version of Dropbox is available.Or, Learn More About Dropbox
Full user review
"Great Application, East To Use, Very Useful. Free."
Free, Easy To Use and Install on Both Mac and PC, Just Drop in Folder and it can be used on all registered computers.
Don't know of any to Date.
I you have more than one computer or use more than one computer, the whole idea is to register each computer with dropbox and it becomes as simple as, to share information and stuff between all of those computers.
Only the stuff that you chuck into the dropbox is visible, not your whole system.
The real bonus is that you can share what you wish with you mates as long as you sign them into your dropbox. There is other stuff that it will do as well but I have yet to explore those.
Just so handy and it is free but there is the provision for more capacity if you need it.