From the iPhoto 1.0 license agreement, dated 17 Feb 2012:
"Title and intellectual property rights in and to any content displayed by or accessed through the Apple Software belongs to the respective content owner. Such content may be protected by copyright or other intellectual property laws and treaties, and may be subject to terms of use of the third party providing such content. Except as otherwise provided in this License, this License does not grant you any rights to use such content nor does it guarantee that such content will continue to be available to you."
They've always used third party (Google) content for this purpose. that's just a disclaimer that while they have a license to show it to you for the purpose of locating your photo, you don't get a transitive license to re-use the data for other purposes. Basically, the photo is copyright by you, the map is not, nor is it by Apple.
"Title and intellectual property rights in and to any content displayed by or accessed through the Apple Software belongs to the respective content owner. Such content may be protected by copyright or other intellectual property laws and treaties, and may be subject to terms of use of the third party providing such content. Except as otherwise provided in this License, this License does not grant you any rights to use such content nor does it guarantee that such content will continue to be available to you."
Don't know what this _really_ means, though...