Shareaza is the one client which attaches to multiple networks Gnutella, G2 (mike's protocol which has been released to the public); BitTorrent, and eDonkey. It is currently going through a public beta process and does have some bugs, however with that in mind, it's reach and breadth of content has been tremendously increased, because of eDonkey network. It works decently, however at this point there are some issues with it's uploading queuing and upload bandwidth deterioration over time. Downloading is not as much of an issue.