For those asking about the Nexus 7, you might like to try PocketFMS (30 days free trial). I works on Android devices as well as iPad/iPhone and covers all of Europe, North America, Australia & New Zealand.
For clarity I am a beta tester for PFMS, but have no financial involvement.
In relation to iPad over heating, I've only had one. It was on a reasonably warm summers day but not exceptionally warm. It was perhaps 20C but bright sunshine.
I put my iPad 3 onto the combing for maybe 3 minutes while I arranged myself and when I took it down it was overheated. I took it down and after 5-10 minutes it was working again.
dp