Personally I like the anonymity of funny SSIDs. This just seems slightly desperate (not helped by the example on the landing page: "I just moved into this building and saw your Wi-Fi. Want to grab a beer?"

I really do want to like this idea, but I just can't see the benefit of it. Worse still, there's nothing to stop me adding my own e-mail address to my SSID and short-cutting wifis.org entirely.

That said, the concept has potential, but I think it needs to branch in a slightly different direction. Maybe the site can be used to search for people who offer up their wireless as free hotspots. Or have interesting intranet services (eg clubs could have some of their local bands content available to download, but only from their Wifi intranet for wifis.org members). At least then they've created an infrastructure where a community can grow in a way similar geotagging. As it stands, I suspect people will sign up and then forget about this service in a couple of weeks time. Which is the opposite of how social networks grow (where people are encouraged to return frequently).

Actually, I might set up that wifi geotagging idea myself...