Has anyone else noticed, that Wolfram|Alpha integration is gone when asking Siri general knowledge questions. It seems Siri now sources information from Bing while not answering the question directly anymore. In the below screenshot I asked Siri how tall Barack Obama is, under iOS 6 the answer was given through Wolfram|Alpha, while iOS 7 now shows a general bio about the person you mentioned. Under iOS 7 below a long list of related materials, there is a button that let's you source the information from Wolfram|Alpha - unfortunately this will result in search results via bing, not a styled card like in iOS 6. Dodgy implementation or dropped Wolfram|Alpha support? Does anyone know?