...but would you believe it if you were in IMC and it said you were just about to fly into the ground or an aerial?
When I plan IFR, I plan to say above the MSA - so I won't fly into the ground - but then again I would imagine all of the pilots killed by CFIT crashes also planned not to fly into the ground.
Having a bit of technology looking over you like a guardian angel and tapping you on the shoulder, saying 'I think you might be about to die' has to be a step forward.