I've noticed this problem using Safari on my iPhone 5 (w iOS 6.0.1). But I thought it was the website I was using. When I visit that site, I usually zoom in with a pinch and then drag diagonally down to where the login button is. Sometimes I make it there no problem, sometimes it just doesn't respond to my movements. And there are times when I feel like if I go over and then down instead of diagonally, it responds a bit better (though that's a longer path to my destination). I also feel like the pinch to zoom has a similar problem. Sometimes, it just doesn't want to move.
It's definitely a subtle glitch, but interesting to see it so clearly demonstrated. Makes me think it's not the website I was using after all.
It's definitely a subtle glitch, but interesting to see it so clearly demonstrated. Makes me think it's not the website I was using after all.