Thanks for listing Tulsa Food. I don't own an iPhone but if I did (and I never will), the first app I would install, after Tulsa Food, is Google Goggles. <I>It works only on the latest iPhone 4GS (or the latest Android)</I>. <B>You take a photo of anything and it tells you about that photo!</B> Take a photo of the Empire State Building and it recognizes the building and tells you its history, height, etc. Take a photo of a box of cereal (or of the barcode on the box) and it recognizes the brand and tells you the price at various stores. Take a picture of the Driller and it tells you if it could beat the Blue Whale. (Okay I made the last one up.) At the App Store, it is called "Google Mobile"
http://www.google.com/mobile/goggles/#text