Right, I just mean that there are probably very very very few people with the technical skill to break into a network (with the tools readily available it doesn't take all that much) that would be stumped by not knowing the model of router or access point.
There are sniff, point, click, and enter tools out there that even an idiot with a pocketPC can use. They work. They do everything from detect the WAP, to sniff out the model #, detect if the default admin password has been changed or not, sniff out the netmask, IP, etc etc... all with barely any active knowledge on the part of the user.
...and that's not even accounting for the fact that even if the WAP is fully secure, on most home installations, few if any of the wireless clients are. It's very easy to find the WAP, follow it to a client without a clientside firewall, and BOOM you're in via peer to peer.