BlueProximity is great but the preferences are too limited. It would be nice if you could add and remove multiple events based on different distances. I have attached a screen shot of what I mean.
As I wrote on your other post - I will integrate this idea and I do like the visuals. I will try to create something similar with additional Icons and a prepackaged set of actions. It should then not be too hard to integrate your own actions. I'll try to support a config directory for actions so self created actions can be created, integrated, passed on to others easily.
I especially like the idea since I think BlueProximity is working almost flawlessly at this time so existing users wouldn't really need a change but to attract more users and especially new linux users that are unexperienced with writing scripts - they should have a nice out-of-the-box experience.