dstumbler & mgmt beacons

I haven't used dstumbler much, mostly dwepdump and dwepcrack. In my test 
setup I have an access-point setup to not broadcast the SSID. I've 
noticed that dstumbler doesn't pick up the access-point for quite a long 
time. I seems that it only sees the access-point when a client associates.

In running prism2dump I see that the access-point sends out mgmt-beacon 
packets pretty regularly with "ssid: []" along with the channel info. It 
seems that dstumbler ignores these since when I see one it doesn't come 
up in dstumbler.

I'm wondering why dstumbler doesn't see these mgmt-beacons and display 
them? Why wait for a client association to grab the SSID? When the SSID 
is passed it can be matched to the access-points MAC address and the 
display updated.

Netstumbler seems to do the same thing. I've noticed it doesn't pick up 
access-points which don't broadcast the SSID.

Seems like an oversight. We should want to know when we see *any* 
beacons and keep track of them updating the available information as we go.

I'm running OpenBSD 3.2 with a PCM-11 Linksys card, a Cisco 340 
Access-point.

Tye