Texas Hold'em King also supports public and private tournaments. We run a monthly public tournament with free game giveaways to the top players. You can also set up private tournaments to run amongst a group of players (e.g. at your company - with giveaways from us as well).
for setting up those tournaments as well as links to download the game.
Magmic will be releasing a free update that incorporates amongst other interesting features (can't disclose these), multiplayer capability (faciliated through our online community).
If Texas Hold'em interests you, you'll also want to check Breeders Cup 2004: http://www.magmic.com/horseracing/
This game is a wagering/training/racing sim. Wager play-money on races to earn enough to buy a horse, then train your horse (a la Tamagachi style) and enter it into races to earn more money and trade up to eventually win the Breeders Cup.
Games are getting better for BlackBerry with more competition arriving on the scene. Expect more interesting stuff from Magmic as we have a lot in development.