The weapons on the battlesuits are not final, I just put them there to see how they look (awesome) I think the theme on this army is going to be drones, lots of them. One thing that bothers me though (not that much) is that I haven't seen the bits to make them into shield drones. Haven't been looking too hard though, I'll find them someday, or just scream to the skies with one hand raised "NOOOOOOUUUUUU".
I just love the tau, makes me wonder why I didn't buy these guys first. :P