TiP Daily March 18, 2013: The Samsung Galaxy S4 tops iPhone 5 in benchmark tests, T-Mobile sends invitations to event where an iPhone could be announced, and more! - Siri reads iBook: http://tinyurl.com/c6wqkdq - S4 outperforms iPhone 5: http://tinyurl.com/cqssr59 - T-Mobile event invites: http://tinyurl.com/cvbhj2b - Follow me on...