Yeah, I'm afraid it will be for a lot of people, since I don't trust .exe files, unless they are from top trusted companies.
For a poker game, I will settle for nothing less than opensource. Besides, Im on linux.
All I can say, give
http://sealswithclubs.org a try

Sorry to get into offtopic, but how sealswithclubs.org is open sourced? Where I can download its source code?