FYI - I was flying RV7A, FL to TX during Feb Freeze. OAT in 30s, new iPad mini w FF on loosely snug kneeboard. After about an hour of direct sunlight FF complained that OVERHEAT was near. Surprised me, cabin heat on, but maybe 50F cabin. Shaded for a few minutes with a paper, then all ok. Definitely watch out for direct sun, even on cold day....
RV7A - purchased flying 05/2020
RV6A - sold 4/2021