Apple filed a patent titled "Systems And Methods For Acessing Travel Services Uusing A Portable Electronic Device" for a location-based suggestion system to be used in travel apps. The patent diagrams have third-party iPhone developers started taking notice of it because they closely resemble existing apps "Where To?," "GuideYou Amsterdam," and "Ralph Lauren."
Dan Wineman who caught the similarities writes "Apple's patent for a travel app is a direct copy, down to the text and the positions of the icons, of an existing third-party app that's been available on the App Store for years."
FutureTap, the makers of "Where To" issued a response "We're faced with a situation where we've to fear that our primary business partner is trying to "steal" our idea and design. So how to deal with that?"
Reference: Apple Travel App Patent
Tumblr lead developer Marco Arment "Most likely Where To is used as examples of app related to a much larger concept that wouldn't put the developer out of business."