peevee1: 1/FL is of course not enough for modern sensors, but just enough with good stabilization. That is why they should have implemented IBIS - no point having a compact camera if you need to lug a tripod for it.
You do realise how big IBIS would be for a full frame sensor? It has to cope with the sensor moving 1cm in any direction?
I was pretty underwhelmed when I saw the rumours, but having seen the specs this is a very clever machine. Proper flash hotshoe + 1/2000 flash sync + FF IQ is a staggeringly good guerilla strobist machine.