But this is just one aspect of the investigation, which affects a range of Google's offerings. Google is also being investigated for giving preferential treatment to its own goods and services on its website, and for taking information collected by rival companies, displaying it on their own specialized site and demoting the rivals' services in its own search result.
"We understand that with success comes scrutiny," said a Google spokeswoman. "We're happy to answer any questions they have about our business."
None of these practices are necessarily illegal. It might also be difficult to show that Google has the market leverage to shut down competition. While Android is expanding like nuts, it doesn't have a monopoly on smartphone operating systems.