Not really. I looked into this a long time ago (in a different context). You can't really get the signal strength with most blue tooth drivers or get the distance in an accurate enough fashion even if you could. I was experimenting with indoor navigation systems using WiFi RSSI signal strengths and even then its very difficult unless you have a lot of receivers to interpolate with.
If you want to do something like that, look at the Leap:
Leap Motion Controller