Actually like Captain Stable says, it is Public Transport which is the problem but more specifiaclly, IFR Public Transport.
Indeed I believe AirMed operates a G Reg 208 (Grand caravan Single Turbine to clear any doubts) VFR only... A bit sad considering the aircraft's real potential.
But hey, where are all the Type Rating merchant we use to read here, telling us all what a good investment (their words), such endorsment would be ?
All was meant to be approved in Feb (their words again) this year yet, I can remember the same words from 1996/7 when the local dealer started to promote the type to UK operators.
Now of course with a few more potential TRTOs, the word is being spread by others but we are still all waiting.
The real shame though is that, this fantastic safe and efficicent type is still not approved when old tins with leaking puffy engines are.