The Airbus....
The Airbus displays both, quite prominently, and, I understand the new aircraft also show ISA deviation.
With regard to icing, we've beat this subject to death. The Airbus FCTM has a very good section on this. "Supplementary Information...Adverse Weather...Cold Weather Operations and Icing Conditions"
By the way, in this section on page SI-010 P4/16 dated 8 JUL 08:
"In climb or cruise, when the SAT decreases to lower (emphasis added) than -40 degrees C, engine anti-ice should be turned OFF, unless flying near CBs."
Just had to throw that in there to stir up the pot.....
My FCTM is not current, as I'm retired and no longer have good access to current manuals.
Fly safe,
PantLoad