Last I checked, Blackberries with 4.x have Bluetooth support..
It's been a while since I looked into that, I'm not sure if it's JSR082..
also, 4.x is MIDP2.0/cldc1.1.
You can check your blackberry.. it's in the settings somewhere.
It's a page that states Java version..
My Blackberry Pearl 8100 supports it.