Sara Forden and Jeff Bliss for Bloomberg:

The U.S. Federal Trade Commission subpoenaed Apple Inc. (AAPL) as part of its antitrust probe of Google Inc. (GOOG), seeking information on how the computer maker uses the search engine on the iPhone and iPad, two people familiar with the matter said.

The FTC wants to find out if Google is abusing its position as dominant Internet search tool to boost its revenue in the mobile phone market, according to an expert consulted for the article.