Devices and SW: iPad 2 ios 5.1.1 jailbroken, Galaxy s2 GT-I9100 Android 4.0.3, latest BTstackGPS 1.6.3 installed from Cydia.
Followed instructions: On iPad turn off ios BT and set BTstack as active stack. Turn on BTstackGPS.
Initiated pairing from the phone using the regular BT pairing...