Assume that I want to send a large file to multiple recipients. Does your P2P technology mean that it works like torrent, each node will contribute some of its bandwidth to uploading or that the file will be sent directly from my computer to each of my recipients ?
Didn't know about BitTorrent DNA. Thanks for the link!
One difference I'd note is that DNA seems much better suited for mass distribution while Sendoid is much better suited for sending individual files (especially if you're on the same network, since you'd need to upload to a server and re-download to get p2p going).
Edit: How does it compare to http://www.bittorrent.com/dna ?