I tried "wl500g-1.9.2.7-d7 (2009-01-24)" on my WL500Gp, works great and stable until now! Good job!
What I really recognized is, thad CIFS access is now really fast against the Koppel-Firmware I used before.


An issue that is still open concerns the sound-interface. The USB audio-adapter I use still only produces a constant beep when playing over esd or by use of madplay. Can this issue ever be fixed on kernel 2.4.x?