Three or more years ago I started
this exact project as a way to learn c#.
Two years ago I restarted the same project to learn Ruby and Rails.
Last year I restarted the same project to resharpen my java skills. I really did. In fact I probably blogged about it here somewhere. I busted up files into chunks, encrypted them, base64 encoded them and stuffed them into XML CDATA to be passed around like hunks of a torrent. It really is an excellent useful idea. I hope they make millions. If they do though, I will see yet another of my many excellent ideas brought to fruition by someone with more ambition than me.