In regards to the 2.39 firmware, one feature i would like back is the ability to log in on the serial console... having to use 2.20 so i can have a look around the device and change things manually is a bit painful considering its apparent bugs.
A few other things that i wouldnt mind seeing are things like a syslogd of some form, so logs of who associated with (or who wardrove

) my ap and similar information can be sent to a server somewhere else on the network for recording, and potentially a way of using snmp to manage the device.