I used to. Don't really know why I stopped, might start playing again.
I used to be pretty good if I do say so myself
win rating was in the sixties
I would't say it's "easier" than worms, and although its similar in that its a turn based game where you move around on terrain and shoot your enemies, I reckon theres more skill involved in Gunbound, you got to take more attention to your angles, wind etc.
I would looooooooooooove it if a NDS port was made, it would be amaazing, although it might have a problem with cheaters using action replay (like the aimbots ingame)