Well, I think they only will work under windows (judging from the description), but we could ask Kriminal if he could make something for Linux !
It would be good to have some more native Linux synthesizers with this kind of user-friendly graphic interface.
Honestly, it's doubtful I'd ever use one, though. JACK compliant applications are best for working with music in Linux.
(plus, learning a new synthetic instrument takes time away from my guitar practice
)