It seems that Asus released the source to yet another stream of firmwares.
It is listed under the WL500g, altough during download it seems it is from the wl300g
GPL source code for firmware version 1.9.2.6
http://www.asus.com.tw/support/downl...0g&Type=Latest
http://www.asus.com.tw/pub/ASUS/wire...3/GPL_1926.zip
ftp://www.asus.it/pub/ASUS/wireless/...3/GPL_1926.zip (1,5megabyte/sec)
ftp://www.asus.com.tw/pub/ASUS/wirel...3/GPL_1926.zip
http://www.asus.com/pub/ASUS/wireles...3/GPL_1926.zip
http://www.asuscom.de/pub/ASUS/wirel...3/GPL_1926.zip
http://www.asus.com.cn/pub/ASUS/wire...3/GPL_1926.zip