What struck me with this article was the requirement to "pull" the data. Take the waterfall example (someone buzzes about a cool waterfall they find). That is g

What struck me with this article was the requirement to "pull" the data. Take the waterfall example (someone buzzes about a cool waterfall they find). That is great, but for it to be useful to others they have to be hiking in the area, be a buzz user, AND have Buzz open. I think many of these location apps are missing the discovery piece and need someway to push content. If you are hiking and your phone vibrated and told you about the waterfall it would be much more useful.