You claim to protect the user's anonymity, but your payment provider's only login mechanism is via Facebook. That doesn't feel right.
Minno only receives information about the size of the download (1GB, 2GB, etc) so that it can charge accordingly. TorrentTraveler deletes all of of its records for each download after 24 hours.
If you have any other questions/comments about Minno, feel free to ping me at calvin [at] minno.co