Well, Toger, it's the size of an iPhone/Touch screen, which is to say small, as you know.  I'm really not sure if some of the puzzles will be doable at that size - maybe with a magnifier, but even then, I don't know.  I only played for about 5-7 minutes - read a letter lying in the grass, went up the steps to throw a switch, then into 2 rooms to look at books and open the elevator door.

In this game, unlike some other games/apps where you slide/spread your fingers, you use your finger like the mouse:  tap on the right side to go right, etc.  Tap to pick something up or make something do something.  So no problems there.

Yapette, my replay was with my original game.  I thought about one of the updated versions, but didn't want to spend $$ on a second copy.  Should there be a three-peat in my future?  Panning would be good.