I ran into the opposite problem with Bluetooth, although on not-so-recent hardware. A little while ago I wrote a bunch of shell scripts for Linux to active Moti

I ran into the opposite problem with Bluetooth, although on not-so-recent hardware. A little while ago I wrote a bunch of shell scripts for Linux to active Motion [1] on my home computer and laptop whenever I (or rather, my Bluetooth-equipped phone) was away. It would then record any detected motion as video and pictures (uploaded offsite in real time in case the computers got stolen -- that, I thought, was a neat feature) and alert me. In practice the system ended up producing too many false alarms when it failed to detect my phone for up to several minutes when I was around and generally had a very unstable range. [1] http://www.lavrsen.dk/foswiki/bin/view/Motion http://www.lavrsen.dk/foswiki/bin/view/Motion