GMail + Dropbox + Magic = Peergate.
When using email we have to save and attach files all the time because we keep files in structured folders while emails are kept in one big list: the Inbox. If we could structure the Inbox, there would be no more need to save and attach files - everything would be at your fingertips, directly in your email/storage client.
The Magic is made possible through a Patent Pending backend architecture. For details see video: https://www.youtube.com/watch?v=4VTTh13mfXs