RIM Hit by More Corporate Extortionists

RIM Hit by More Corporate Extortionists: Just weeks after Research in Motion settled a long-running patent lawsuit with NTP, the company is facing yet another patent infringement claim. This time the lawsuit was filed in Texas by Visto, a California mobile communications company founded in 1996, and it accuses RIM of violating four separate Visto patents that relate to mobile e-mail.