So BGR is reporting that it has "confirmed with multiple sources" that RIM's alleged BlackBerry tablet device is very real -- despite Mike Lazaridis' recent downer comments on the subject -- and that it'll have an 8.9-inch screen, WiFi, and Bluetooth connectivity to hook up with your phone. Oh yeah, about that Bluetooth connectivity: the tablet is being billed as a "companion" device, something to use when you need a little bit more horsepower and screen real estate for multimedia and the like. Sound familiar? Yeah, Palm tried this with famously catastrophic results a