nudging

Just curious as to whether nudging was considered 'foul play' once upon a time, or was always considered a legitimate technique? How early were tilt sensors added to machines? Thanks.

This might be extraordinarily obvious to everyone else. Or it might just be me that likes holding it this way. But I thought I'd post it anyway, because it took me a surprisingly long time to figure out a good way of doing it. The problem, in a nutshell, is I prefer to flip with my fingers...

Okay I need some tips on nudging. I don't use the swipe because it seems inconsistent and I'm not sure where the swiping "sweet spots" are. So... 1. Does it matter that I lie down to play with pad standing straight up? 2. Does the direction of the nudge mimic a real table? Ie can I nudge any...