I think that would be cool too. I would say keywords could get you most of the way there, but they get abused so often that I think it would be much better to see Greg's suggestion implemented.

Oh I completely agree Greg! I would love for an option in the app store to search for geographically-centered apps, for instance the iphone app store could use the GPS location to find any apps that have to do with where you're at. I only found out about the KATU app from watching the news here in Portland. I've seen zero mention of it on any iPhone website, or even on KATU's website (edit: now that I look they have a small ad for the app, though it's not exactly obvious…) for that matter. Who knows how many other excellent location-specific apps are out there that very few people actually know about.