Last aircraft, I had two iPad overheats, within a year or so. Installed a third, dedicated, mini eyeball vent (T off one of the two main vent lines) directed onto back of iPad - worked a treat, never had an inflight overheat again.
Sonex has a panel integrated iPad holder, by Guardian Avionics, with its own fan. The idea is great. Guardians electrics are crap. I have replaced the Guardian transformer that drives both fan & iPad, with an off the shelf automotive one. System now works very well, no overheats, no loss of power to iPad.
"There's no way I'm going to trust my navigation to an iPad'
You should not trust your navigation to one single system.
I have no less than three GPS systems and a "Whiskey" compass. Once established in Cruise & On Track, I note the aircraft heading, if diffrent from planned heading. I also note any variation in ground speed. The first gives me confidence , should my EFB fail, I can still follow the the planed Track. The second informs me of higher/lower fuel burn, than planned, for that Leg.
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