ReadWriteWeb

What is that mountain you're driving past? Just point your iPhone at it and you can read its Wikipedia entry. Science fiction? Not anymore. Two new apps for viewing Wikipedia entries about physical locations you look at through your iPhone camera are now available in the iTunes store.

Wikitude and Cyclopedia are the names of the apps and both require the new iPhone 3GS. That's because the 3GS is the first iPhone with an internal compass - Augmented Reality (AR) apps use your phone's GPS to know where you are and the compass to know which direction you're looking at. Then these two apps can tell you what you're looking at that's written up in Wikipedia. Here's how the two different apps compare.