Probably the best virtual stick I have ever used, the trick for adjusting your camera is also well implemented. (toucharcade.com)
So if I understand you correctly FF VII is played with virtual sticks and what about the fighting mechanics? (toucharcade.com)
The article also talks about how they went about deciding on what kind of virtual sticks to have in the game and what playtesting taught them when it came to that aspect of the game. (toucharcade.com)