I understand the benefits of supercapacitors, I just don't understand the lead-acid battery part and it's benefit at all. If the capacitors are main energy storage, why batteries at all? if they are needed for energizing and some other supporting roles, NIMH or Li-ion would be smaller and lighter anyway you look at it? And since you don't need huge capacity, the price difference wouldn't be big factor either. Also, if everything is working perfectly why they're not setting up huge production lines already, the potential market is beyond imagination and there should be no problem at all to attract investors . On the other hand if they still need to solve some major problems, who knows if those can be overcome at all, many projects like that never see light of the day, due to some "tiny" problem they forget to mention . And those prices seem very optimistic at best. Lets hope for the best but I wouldn't hold my breath.