Poker Update – The Poker Players Alliance (PPA) has had its hands full lately in combating Sheldon Adelson’s Coalition to Stop Internet Gambling as well as assisting players in the Full Tilt remission process. However, the grassroots organization working on behalf of poker players has found the time to take on a new cause – namely, the payment processing deficiencies of Lock Poker. The PPA yesterday sent a letter to Lock Poker representatives demanding answers regarding the room’s payment processing procedures and the glacial speed in which many cashouts are processed. Directed to “The Owners, Officers and Managers of Lock…