From the perspective of a grand total of 1hr35 flying a G1000, most of it in cloud, it really does seem to be, as I suspected, like a video game ... with the difference that if you screw up or get killed there isn't a "reset" button.
One thing I'll have to get used to is the much less obvious rate 1 indication than you get from a turn coordinator ... "c'mon, watch your bank, we don't want to be doing any unusual attitude recovery in real cloud".
The GPS really does make it every so slightly easier to fly NDB procedures
Oh well, I'm signed off to fly the thing solo now, so if you never hear from me again I got it wrong.