| | Blackberry as a Bluetooth Proximity card
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I have been playing around with the bluetooth on openSUSE and found this nice script that works very well.
It will make your phone a proximity card, and when you walk a certain distance away from your machine. It will enable the screen saver.
I use this at the local coffee shop all the time.
One tip is to pair the devices from the laptop not the phone.
hcitool cc BT:MAC:ADDR
hciattach --connect BT:MAC:ADDRR
Attached is my script, edit the MAC addr for your BT and adjust the time or proximity settings for your use.