A quick post to say I am now the official maintainer of SoulMeBaby, a Netsoul client, originally written by Alexandre Bique.
SoulMeBaby under Gnome
SoulMeBaby is a simple multi-platform Netsoul client written in C++ using the Qt framework. It is far more evolved than my first try and also very stable. Pre-compiled software is available for direct use on the PIE. Otherwise, it is relatively easy to compile.
If you did not understand any word in the last paragraph, then it means it is not for you 
By the way, the repository also holds a copy of a Kopete plugin. If you are looking for a Pidgin plugin, look at the gaim-netsoul project (not really active, but stable).
M83 – Midnight Souls Still Remain (2008):
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PS: I am not sure I will really use it, but I started tweeting.