Solved! Go to Solution.
Nokia used to have, several years ago, a BlackBerry Connect client for the early E-series models.
Then Nokia removed it stating that they'd agreed with RIM that RIM would come out with a Symbian client on their own. Never happened. Never will. Nokia is also not going to go back to trying to release and maintain their own BlackBerry client app, I bet.
The Blackberry client on those Nokia's was only for e-mail and calendar sync (like Mail for Exchange), but I think the original poster would like the Messenger (BBM) to be ported, which I'm afraid won't happen any time soon.