June 8, 2009 1:00 pm iPhone 3G S Explained Apple is dropping the retail price of the least expensive iPhone to $99 from $199 and introducing new models. US & World Videos 1:20 Former educator's company helps teach via music, performance 3:51 Ford marks 60th anniversary of the Mustang 1:06 Watch: Experts say get kids involved early when talking finances 2:23 Tesla laying off more than 10% of workforce 1:09 Most people say their income tax refund is spent already