Funkitron has released Poker Superstars II for the Mac. The game features three game modes, speed-up options for practice, and a system for tracking best winnings, winning hands, flops seen, and pots won. In addition, it offers AI versions of Johnny Chan, Barry Greenstein, Carlos Mortensen, and 12 other well-known poker masters. Pricing is US$19.95 and Mac OS X v10.3 is required.
Note that the U.S. Congress recently passed a law that contained a Republican rider that effectively criminalizes playing poker online. It specifically targets moving money from the U.S. to online casinos, including for playing poker. As such, most, if not all, of the online casinos are in the process of suspending their U.S. operations the moment the law is signed by President Bush.