I read the criticisms of the new technology, and I think that they are valid, but short sighted. Electric vehicles have tremendous potential, and it's fun to see something new in the world. It's kinda like seeing your kid play sports- you don't compare him to pro athletes, but you enthuse over his development, and and ponder his future. One thing that's cool: a silent trail bike can open lots of urban riding locations because you're not pissing off the neighbors with the two stroke racket. For an hour or two of local fun, these bikes are really attractive...but the price needs to come down a bit. When the commuter bikes can reliably go 100 miles on a charge and cost maybe 8k, they'll start selling well. They'll be great for beating traffic in crowded inner cities, silent, non polluting and nimble. For now, companies like Zero and Brammo need to garner some fleet sales from the likes of police departments or the postal service in order to survive. I look forward to seeing the state of the art in five years!