This is heating up now! Here we have a trio of BlackBerry 10 smartphones sitting together sharing different designs. The middle BlackBerry is the All-Touch BlackBerry “Z10″ L-Series smartphone with BlackBerry “X10″ N-Series. The latest device to join the party is far left white BlackBerry which has Curve styled keyboard. This could be the BlackBerry 10 Dev Alpha C which RIM has promised to handover to developers soon.