On the G150 the STREAM offers EVS-- but they could not fit the HUD equipment in there, so the EVS shows up on the MFD... which is pretty much useless!!

I personally am a HUD fan-- on cars and on airplanes!

A HUD with EVS gives you so much situational awareness-- and not just in take-off/landing phase-- in cruise you can see if you are going to top that cell in front of you as well!!