BitTorrent Sync is a young p2p tool which opens some fantastic possibilities. It may revolutionize the way you'll handle your private file sharing as it allows you to share & synchronize your files across multiple devices (PC, tablet, smartphone, ...) on the net in almost real time.
Some examples of the possibilities opened by BTSync are described in the article BTSync - How peer-to-peer may Simplify your Life.
Like with any p2p network, BTSync needs to get some accessible peers to start synchronisation.
So, to allow synchronisation to be done at any time, you can setup a permanent BTSync peer on a NAS running 24/24. As your NAS is always connected, it will handle all your devices connexions whenever they need it.
This article explains how to install a BTSync client on a DNS-325. It will transform it as a permanent BTSync network peer. Any device (PC, smartphone, tablet, ...) will then be able to synchronize any time. You will have then created your self hosted Dropbox or Google Drive replacement.
It has been tested on a DNS-325 running firmware 1.04. As a pre-requisite, funplug 0.7 must be installed on your DNS-325.