Wirelessly posted (BlackBerry8310/4.2.2 Profile/MIDP-2.0 Configuration/CLDC-1.1 VendorID/102 UP.Link/22.214.171.124.0)
The alerts that are sent to your facebook app are the email notifications that are set on your account. Now if your bb email and fb email match. You can go to the facebook app options and uncheck leave message on server and instead of getting email alerts like you always have. The bb facebook app will habdle it all and alert you if its running in the backround. I have found that this process IS instantaeous.