With the iPhone finally getting legitimate GPS we’re bound to see more widespread use of location based apps. Services like Dodgeball, Brightkite, and a few Twitter clients have been around, but failed to tightly integrate with the hosting phone. Now we’re seeing applications that reach beyond just “finding your friends”. [Merlin Mann] directed us to the version of OmniFocus for the iPhone. OmniFocus is a task management system that’s now location aware thanks to the iPhone. This means it knows to show you your grocery list while you’re at the store and work tasks while you’re at work. Passive interaction could really make similar systems a lot more enjoyable to use.

We think this is just the tip of the iceberg. Imagine alternate reality gaming that gives you a virtual map while you navigate the real world. Geocaching, road rallies, and scavenger hunts could have a running narrative displayed as you progressed. Using technologies like GeoRSS will let us pull data back into the real world making that rare trip outside a lot less painful.