there are several texas holdem games for the arcade but they are all single player games i.e player vs computer players...there is none well none that i have heard of which are multi player games.......
It's an old thread. But soon you will be able to play multiplayer texas hold'em within your community. I'm coding and testing the authentication for SMF as of this writing. IPB, Xenforo and phpBB3 are done. SMF part has been left unfinished for a while due to my busy time.
Here is a demo of working in progress for IPB board, but through configuration it is just a matter of toggle the platform you want to use with.
The only requirement is you will need a VPS and root account.
This is a work done on my free time so it's kinda slow since I give most priority to IPB which my forum runs on. SMF was requested by a friend which I have promised to get it done.