Google CEO Eric Schmidt thinks it might be:

According to CEO Eric Schmidt, Google has positioned itself to make $10 billion dollars or more per year in the mobile business, from things like subscription news. "If we have a billion people using Android, you think we can't make money from that?" He went on to say that it would only take 10 dollars per person, per year, and among other things, Google might earn that money from selling access to digital content from newspapers.