For LeBron James lovers who can't decide whether they want to wear their loyalty in the form of a Miami Heat, Cleveland Cavalier, or Los Angeles Lakers jerseys—then the NBA's smart "jersey of the future" has your, er, make that James 23, James 6, and (again) James' 23 on it. NBA commissioner Adam Silver introduced a prototype of a jersey that changes players' names and numbers with the push of a smartphone button to attendees at the 20th Annual All-Star Technology Summit in Charlotte, N.C. Friday.