Really Morpheus users weren't any better than Gnutella network users, it was just that the system of downloading each file from more than one person at once meant that you always had a few sources at any one time. If you watched the list of people you were downloading from, they'd often switch and drop off the list. It's just because no Gnutella clients, to my knowledge, implement the same system, and in fact it'd be very difficult to given the nature of the network.