This is what /etc/rc.conf sais:

# Don't use this for wireless interfaces, see network profiles below
# 
eth0="dhcp"
INTERFACES=(eth0)


.. and this is /etc/conf.d/wireless:

# Settings for wireless cards
#
# For each wireless interface declared in INTERFACES (in rc.conf), declare
# a wlan_${IF} variable that contains the arguments to be passed to
# iwconfig(8). 

So, bottom line, can i add wlan0 to /etc/rc.conf's INTERFACE?