A Dutch startup called Layar is providing mobile augmented reality for Android-based phones, based on the phone’s GPS and internal compass. You just use the phone’s camera, choose a “layar” of information (house prices, local jobs, nightclubs, etc.), point it anywhere you like, and it shows you information about whatever you’re looking at.
The possibilities for “consumer BI” are endless, but you can also imagine it being useful in a corporate context, looking at sales in different sections of a retail store for example (and combined with an interface like RoamBI). Enjoy!