These screenshots compare the Where To? 1.0 design (released on day one of the App Store) and an Apple patent submitted in December 2009. FutureTap describes their concern in a recent blog post:
I’m not a lawyer. I can’t really judge whether the inclusion of a 1:1 copy of our start screen in someone else’s patent is legal. I just have to say, it doesn’t feel right.
Jeepers.
Update: It appears that this is actually listed in the third-party examples section of the patent, showing other apps (such as Where To) which make use of Apple’s current programming APIs (hat tip to Rune Madsen via Twitter).
