There already are open source, ad-free (and crossplatform!) Torrent clients. Deluge for example http://deluge-torrent.org
What makes Patchy special?
What makes Patchy special?
We did a portable version and it's been pretty popular: http://portableapps.com/apps/internet/qbittorrent_portable
I would find Patchy a compelling choice for Windows if it was a frontend to, say, libtranmission.