US guys share you experience for best iphone games you like to play?

I was asking about what kind of games you all play on iPhones, give their names and tell why you prefer that game… Lets see whose gonna list the best game app…

Well I don't have an iphone for myself, but I borrowed my sister's while I went and house sit for them while they were out, and I really liked the "Logo Quiz" game. I liked it a lot because it's a challenging puzzle type game and it makes you think. I found that the best game I've played. I love puzzles!

Hardest Game Ever2