Saving anywhere

Technical contact: ?

On phones and other mobile devices ScummVM may need to be shut down abruptly.
It would be very nice to be able to (automatically) save at _any_ point
when you have to shut down ScummVM suddenly, including in cutscenes,
conversations, etc... Most engines don't currently allow this.

Since saving is something that every engine implements separately, a GSoC
project might consist of implementing this for a number of engines.