Check out Sprint's new phone, launching on June 4, 2010. Specifically, go to around minute 2:45 and watch the demo of the Virtual Reality Browser. The presenter shows the phone's camera identifying members of the audience as he points the phone at the audience and pans. The phone then automatically query's Google Goggles and returns back images of each audience members that it identifies and what they have recently tweeted.
Can you imagine if you're walking in a crowd and all someone has to do is point their phone camera at you and up pops on their screen an entire personality profile of you and everything you've done on the web in the last 48hrs. What porn sites you've looked at, what purchases you've made, what bills you've paid, what you've posted on various forums, what others have said about you in various personality rating systems, your entire work history. It's endless.
How do we protect ourselves from this kind of invasion from anyone with $300 for a phone?