[Quexos]

This thread sounds like an ad for cloud computing (or at least cloud storing)
Anyways what is the limit in size of files I can upload to dropbox ? is it free to use ? Can I create permissions for say friends to access my data ? how well protected it is ? can my private data be hacked ? and so on ...

Oh and perhaps the most important, this dropbox is a program (A client I assume) that you install on your computer and since it must certainly have firewall permission, could it act as a trojan horse and allow someone to access my computer by some backdoor ?

I'm asking all that because when you go to the dropbox website there is nothing but a video explaining the basics of what you can do with it and a download button, but nothing else which is odd.