Good to see there a more people interested in the same functionality. For me it's required for a BT link to a SMA SB4000TL solar inverter.
The information on http://www.on4akh.be/Bluetooth-Qnap.html
looked good, nicely written out for a Linux noob like me. However, as stated before, it does not work.
The problem for me occured installing the dbus_1.2.16-1_arm.ipk package. Error message: 'Package dbus md5sum mismatch.'
I'll try to get it sorted. If i succeed I will post!