It's a fork of the first Linux *mule client, LMule, originally ported by tiku from eMule 0.26d. Based upon the wxWidgets library.
xMule is known to be hostile towards aMule and eMule. As of version 1.8.4 they started banning aMule and eMule >0.43x clients.
aMule is a fork of xMule.
