I second this request. I'm using a Galaxy tab and even with the 8 inch screen I have issues trying to touch the right icon while in flight. It would be awesome to be able to set the size once in settings and then not to have to resize it each time we use it.
Same issue here. I however decided to simply use the phone mode, as I found all buttons to be pretty small, particularly in turbulence.
Just a "me too", and also using a Nexus 7. The buttons on the pop-up are pretty difficult to accurately press while flying.
This is on our wish-list. Some screen resolutions seem to make them appear pretty small. We are looking into this for a possible future update. Thanks for your feedback.