I used to play this a lot so wanted to try one out on the iphone.
Problems:
1) it crashes on me very often
2) the points system needs to be fixed- 10 cards left or more should be a double, and 13 left a triple. Or make it customizable so people can determine what scoring system to use. That would make it more fun for sure.
3) cards are small and hard to see
Overall, it plays OK. I played a few rounds on "hard" and still ended up beating the opponents at least half the time.
Big 2 Fan about Pusoy Dos aka Big 2