iPhone Missing A Killer App: Social Networking

iPhone owners, like users of most Apple products, are a fairly passionate, elitist group of people.I think an iPhone-only social network, if it had the right features, would be a huge hit with these users. Actually, I think any mobile social network would be a big hit, if it had presence awareness and was able to tell you both where your friends are and what they are up to. And also let you meet new people around you who were open to it.

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