Where it says Java that means it runs on any platform supporting Java .
Wich basicly translates into Windows , MacOS(X) and Linux .

Here is the list , there all free .
Altough Toadnode is still in closed test stage .
And Omni requires free registration .

BearShare 2.4.2 http://www.bearshare.com/ Win
LimeWire 2.1.3 http://www.limewire.com/ Java
FileNavigator 3.0 http://www.filenav.com/ Win
Gnucleus 1.6 http://www.gnucleus.net/ Win
Gnotella 1.0.5 http://www.gnotella.com/ Win
BodeTella 1.1.0 http://www.felmlee.com/bodetella/ Win
N-Tella 1.2B http://www.friedcat.co.uk/ Win
MyTella 1.057 Hompage disappeared
Phex 0.6.2 http://phex.kouk.de/ Java
Gnewtellium 0.05B http://gnewtellium.sourceforge.net/ Mac
Gnut 0.4.28 http://www.gnutelliums.com/linux_unix/gnut/ Linux
GTK-Gnutella 0.80 BETA 1 http://gtk-gnutella.sourceforge.net/ Linux
Mutella 0.3.3 http://mutella.sourceforge.net/ Linux
NapShare 1.0 http://napshare.sourceforge.net/ Linux
Qtella 0.3.6 http://www.qtella.net/ Linux
Mactella 1.3.5 http://www.cxc.com/ Mac
SwapNut 1.0 http://www.swapnut.com/ Win
XoloX 1.12 http://www.xolox.nl/ Win
Toadnode 1.0 http://www.toadnode.com/ Win
Newtella 4.7.01 http://www.newtella.com/ Linux - Win
Aimster - Madster http://www.madster.com/ Win
Omni 2.0 http://www.emphatech.com/ Win
Iassimilator 2.0 BETA 6 http://www.iassimilator.com/ Win
Hagelslag 0.14.1 http://tiefighter.et.tudelft.nl/hagelslag/ Linux
PEERanha 1.41 http://www.godx.de/ Win

Just to let people know there is more in this world then BS , LW and XoloX .
If you know any other client , just post here .