Geoff, in all the meddling in education in the UK over the last 20 years, CPR - which I would put firmly in essential personal and social development classes nationwide - does not seem to be high on the agenda. Come to that, it probably doesn't even feature under "any other business"...
When it comes to reliable technology, yes please - but a BlueTooth device that picks up the battery state sounds a bit unreliable. The Zoll batteries in the M series, for instance, can cause "battery under current" or "battery over current" alarms when they are on charge for ages without being used/discharged. Not so smart now, are they?!
