would it be possible to make it so that the program sort cart by converted cost in the hand while playing games or is that a plugin feature?
I don't think I'll add something like that. Little unimportant things like this quickly make the interface cluttered. You can always sort cards manually, and everyone does that differently, and you likely do it differently from time to time. I think if I were to try to implement something like this, it would be more annoying than useful.
How's the iPad version coming along? ^_^
Could try looking in general discussion:
http://www.lackeyccg.com/forum/index.php?topic=1533.75