I need to clear this by the author, but at least for my own personal programming fix, it was just right.  

This was built with VB.Net and works with XP and 2000... Screenshot below this one is from Mono 1.9.1 in Ubuntu in a Sun Virtual Box.  

And now the Linux....

Overall, looks pretty good.  Button text/alignment stuff, but not bad.  If it is okayed by the Decktet creator, a link will be placed on the right side to grab your own copy.

EDIT:  Forgot to mention... the extended cards can be selected, as well as rules for scoring diagonally and allowing the variant to allow flushes to be scored as well.