When doing a search of the web for wrist rockets, I stumbled across this.
http://www.catsdomain.com/howwork.mpgIt's an interesting new design with what seems to be a rather gimmicky laser sight. But the fact that it also has a more traditional rear blade/front post sight on it as well made my opinion turn towards the positive. The dual axis design is unique and allows for easy aiming.
Overall, I think its actually pretty cool at first glance.