Michael Arrington over at TechCrunch warns MySpace and Facebook to get with the program and include location awareness on their iPhone apps. It seems the biggest obstacle for them are legal and privacy issues, however. The possibility of sexual predators and children-stalkers give them the heebie-jeebies.
This isn't rocket science. Just make location awareness opt-in with an extra layer of controls. First, one can turn "location" off and on at will. Second, one must invite people off their friend lists to participate - and those invites must be accepted. To protect young ones from predators, have the AT&T account holder give consent (usually a parent is paying the bills - I doubt any 13 year olds are forking over $80/month by themselves). Basically, the consent flag clears the phone number in question to use location awareness upon download.
It's silly to think location awareness on MySpace or Facebook puts you on the radar of 3rd degree acquaintances, rock bands, and people you've never met. It doesn't work like that, nor should it. We all have lots of friends on these SNS sites. Some of us, more than a thousand. How practical is it if your phone lights up telling you there are 40 people in a one mile radius of you, half of them you didn't even know were a "friend". That can't happen or the whole location awareness thing is going to flop.
If I have to send invites to friends to participate in the service, it's a whole different ballgame. I'd probably choose a handful of peeps in LA, and maybe some people I'd want to bump into if I ever saw them. Again, they would have to accept the invite. No harm no foul.
Can you imagine people in silicon valley with thousand plus friend-lists (and there's a lot of 'em) when they go our for lunch? Their location pings will go off the charts, and they'll have problems discerning who's actually around. For location awareness to work, users are going to have to limit who is and who isn't "aware-worthy". Hmm, maybe I just coined a new 2.0 term. You heard it here first.