Uhmm.. So GM wants to be the first major automaker to market hybrids equipped with Li-ion batteries. I don't think it will help at all. Honda came up with the Insight before the Prius but the Prius pretty much kicked the Insight's proverbial backside in sales and popularity.
Granted, the Saturn IMO is better looking than the Honda in question. But we have to consider the reputation of the automakers here and how consumers think about their products. Honda is known for its innovative engineering prowess as well as bullet-proof auto parts while Saturn, well, I can't say the same thing for Saturn.
Here's hoping though that the "American team do catch up...."