Finally a genuine use for Bluetooth! You’ve seen the million different variants of the Bluetooth handsfree ’slug’ earpieces, the Bluetooth mice, even the SonyEricsson Bluetooth-controlled car. None of which are all that useful or especially innovative. 

Now, live from the fields of Farmer Barleymow, however, comes news of a revolutionary use for Bluetooth - monitoring the health and location of cows! Yes, a Danish inventor has developed a Bluetooth system that can be, er, interfaced with a cow (I’m not guessing how!).  So there you have it - finally, the killer app for Bluetooth. We humans have MobSharing - Daisy and her friends, it would seem, have MooSharing (sorry!)