Wuala: store data online, and share them if you want

Wuala is a mixture of a classical online storage solution and a file sharing application: you can share your data with logged in users or entire groups while all your data are uploaded to a p2p net - even when you’re not connected. The program was now released as a Linux version.
Technical Background The interesting advantage of Wuala compared to usual file sharing applications is the fact that every user can first define which user or group is allowed to see which content, and that you don’t have to be connected to the net to offer your friends the option to download your stuff. When you mark your data for upload they are splitt into small parts, encrypted and afterwards uploaded to the other clients of the network (including some big servers of the company behind the project). All data is saved...