The mobile internet raises all kinds of challenge for content providers in terms of how they monetize their wares, and where they fit in the value chain alongside software houses, device makers and cellcos. Rupert Murdoch, one of the most influential figures in publishing, believes in leveraging partnerships with key device makers to preserve fees for newspapers and books, and to create a broad content platform that could sideline the open, ad-funded frameworks of Google and also the bid by cellcos to control the mobile content experience. For their part, the operators also want to minimize Google’s impact, and are looking to work with content owners to differentiate their portals, but also to boost their own revenue streams by charging…