After trying several pai gows, I found one that iworks and is pretty good without needing to connect to a casino.
Its "All Mobile Casino" by binaryfish and can be found at Handango. Graphics are good and speed of play is not bad. It also has an option to show you the house play on any hand.
Unfortunately, the trial version only has one hand of pai gow. To get full play you need to register. It costs $14.95.
You can find it at:
http://www.binaryfish.com
Other Casino Games included are:
6:5 Blackjack .
American Roulette Baccarat
Blackjack Six deck
Caribbean Poker
Casino War
European Roulette With Announce and Call bets.
Pai Gow Poker
Sic Bo
Slots
Video Poker
10s or Better
Deuces Wild
Jacks or Better
Joker Poker :D