Yes, seems they added most of the features needed - static dhcp, eth interface configuration for speed/duplex, radio twpwr, etc.
Also, there is now built-in backdoor to the router - it's checking for
/mnt/usbfs/user-start (i.e. user-start on the usb drive) and start's if one found.
Also they've have used latest broadcom kernel sources (known as wrt54/wap54 v2) and recompiled iptables to 1.2.7a, second busybox was removed.