Not currently. The messages app will bridge email (Not SMS, PIN and other notifictions that show up here on your BB). The BBM app links only with BBM so it will not receive PIN or SMS. Not sure of the technical reason for omitting bridge PIN and SMS but hopefully will come on an update soon (along with spell check heheh)
Thanks for the reply. I was really looking forward to using my playbook to read my blackberry messages. It's unfortunate that I have to keep checking my blackberry to see if I have any pin messages.