Do the internet bros know about this: http://labs.bittorrent.com/experiments/sync.html ?

Some interesting dot points:

Sync unlimited files between your own devices, or share a folder with friends and family to automatically sync anything.

File transfers are encrypted. Your information is never stored on a server in the cloud and your data is protected by private keys.

BitTorrent Sync is specifically designed to handle large files, so feel free to sync original, high quality, uncompressed files.

Thinking about using this as an alternative for Dropbox? Anyone on this?

wouldn't that require you to have your computer on all the time? and large files would just move between your own devices? (just going by the quote) "Your information is never stored on a server in the cloud".

I think like bitcoins, it's actually stored by many people, with the belief that it won't be decrypted because only you have the key.. and decryption is impenetrable.

edit; maybe not, but it doesn't seem clear.

There are rare cases when peers can’t talk directly. This usually happens when devices are in an office behind strong firewalls. In such a case BitTorrent provides a relay server to route traffic between peers. All traffic is AES encrypted with your secret, so there is no chance for us to see any of your data.

You can opt out of this, but it could result in peers not being able to network with each other

It sounds like others will touch your data...