build 5.4.8 is available for testing.
this release comes with an updated kernel (still 2.4.20 but with extra features)
the sound should be better, battery monitoring should be better, and hostap support is improved, ie some wifi cards that previously were created as eth0 will now be wlan0 and scanning should work so wifi radar should work nicely now. in order to get wpa working, you need to install this package: hostap_driver_0.4.7_3_armv5tel.ipk