To my knowledge, this is the first time any avionics has shown you airspace in 3-D in flight.

This is quite useful to really be sure you are avoiding airspace you aren’t in comms with.

Here are a few pics, taken in Xavion 2.27:

Overflying the KCAE Class-C:
No fear of incursion, but watch out for the restricted airspace at right.
Approach KCLT Class-B with no fear of incursion.