Update: The complaint is out now, and it's a doozy -- RIM says Kik founder Ted Livingston was a former RIM employee who worked on BBM. When he left RIM claims he joined the BlackBerry Alliance developer program to ostensibly develop a music sharing app, but wrote Kik Messenger instead, using what RIM claims is confidential information from the Alliance program. RIM's also saying that Kik's marketing steps on the BBM trademark. That's a lot more than a simple patent issue, and it certainly explains why RIM reacted so violently to the app -- we'll see how Kik responds.