Research in Motion (RIMM) is fighting to stay in the smartphone game with its newest contender, the Blackberry 10. Verizon, AT&T and T-Mobile have all confirmed that they will carry the Blackberry 10 when it is released this February. The phone will feature a touch-screen and a QWERTY keyboard. Its operating system has not yet been revealed. The release of the Blackberry 10 has invoked varying degrees of enthusiasm, from Verizon CEO Lowell McAdam’s “We’re hopeful it’s going to be a good device” to T-Mobile CEO John Legere’s “extreme optimism” about the phone. Read more.