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As a film buff, I appreciated the locations of Elliot's house from E.T., and the Kill Bill chapel. The only drawback is that the destination list is pretty slim, with just Austin, Hawaii, Los Angeles, San Diego and San Francisco. The developers promise more locations are on the way, and you can add locations anywhere for others to share. Places you want to visit can be added to a to-do list.
While the list seems pretty urban, the fact is there are a lot of wonderful out-of-the-way parks and natural locations near those cities. I'd like to see more places, obviously, and I think the app should be able to send a location to Apple Maps for easier navigation.
This is a good idea for an app. If you want more content in a paid app, take a look at some of the Rough Guides. The New York City Rough Guide app, for example, is really excellent.
The app is not universal, but is optimized for the iPhone 5. iOS 5 or greater is required.