Layar is a mobile app that I have been playing with for Android Mobile Phones. Basically it uses your camera, GPS location, compass and accelerometer to calculate which way you are facing, and from where, to tell you web information on places near you and in what direction. 
Wikipedia is the obvious ‘layar’ to play with. It was easy and really fun to drive with it (passenger seat of course) and point my camera in a certain direction and get city data, local legends and other strange things that Wikipedia has. Layar also has local search and layers for bars, clubs and restaurants.
This makes it very important to be easily searchable, locatable and listable online for any business. I walked through London’s north west side with Layar and got tons of recommendations based on searches. But of course, non-tech savvy business owners were nearly impossible to find even on their door step. This isn’t Layar’s fault, it’s the business’s.
You can see more at http://www.layar.com or of course download it from Android Market and the Apple App Store.






