WiLan has hit RIM with yet another patent suit, this time pertaining to Bluetooth. The suit has been filed in the Southern District of Florida and claims that BlackBerry devices including the PlayBook infringe on U.S. Patent No. 6,260,168 related to Bluetooth technologies. WiLan is seeking damages and looking to halt sales of the offending devices. Other details are a bit sparse on this one, but we'll keep you posted when and if anything come of this one.