Excuse Me... Your Cell Phone Is Barking!: Purina(R) Launches Purina.mobi and go2 Pets(TM), Two Mobile Web Sites Dedicated Entirely to Pets ST. LOUIS, MO--(Marketwire - September 11, 2008) - Mobile Internet usage has grown tremendously in recent years with more than 54 million Americans accessing the Internet from a mobile device in the...