The best business stories, you may have missed outside the confines of Wall and Broad Street. T-Mobile is offering the IPhone 5s for free for a 7-day trial. It's the latest attempt for the nation's number 4 carrier to gain market share. T-mobile is also offering free music to its customers, not charging music streaming to the data plan. Starbucks' much touted plan offering full tuition reimbursement for its workers to earn a college degree may not be as generous as it first seemed. But education is certainly paying off for MBA students and graduates. Scott Rostan, the president of 'Training the Street' is out with their annual survey and The Street's Susannah Lee has the details.