Harmy said:
The question is what actually happens when it gets converted to 720p60? My guess is, that it simply shows some frames 3 times and some 2 times, which is something that happens on a 60Hz monitor or TV anyway and on a 120Hz or higher, the frames are simply going to be shown that many more times, right?
Precisely. And it's honestly not that big of a deal for the most part, except you notice the lack of smooth scrolling in the credits, etc.