Description : Securely and simply transfer data between computers
This is the first time I weigh in on something like this, so if I'm out of line, please ignore me.
I would object slightly to calling it "securely", from what I can tell by a quick glance at the code, the data is relayed through the authors private server. The pass phrases seem to be fairly limited (chosen from a 512-entry dictionary iiuc), simply spamming the the public endpoint with passwords should net you something cool sooner or later.
Also, as a comment in the code suggests, the server might disappear at any time so it's not intended for wide adoption.