Stupid statement, since the LimeWire developers don't even try comparing to Shareaza and their current focus seems slightly different from Shareaza's. For example they have not even started working on partial filesharing and I haven't seen much effort put into gnutella weblinks either.

Shareaza has some new features but most of them are effectively not working since 95% of the gnutella network don't support them. Partial file-sharing is nice, but when nobody but Shareaza users are sharing partial files, it simply doesn't increase performance. And gnutella weblinks are fine too, but with a weblink you can't download anything from new Morpheus (which will make up for at least half of GNET and which doesn't even support SHA1 hashes as it seems).