there are plenty for emulators, just search...
Natively on dingux or original os, i do not think there are any yet, but i do know there exist plenty of them on linux in all sorts of variations so porting one might be possible depening on how they are implemnted, i'm not certain but the gp2x had some but i'm not sure, however i am sure that the nokia n810 tablet had some and that did run a linux variant. I think the name was assilerot or something and had many card games