New battery tech (Has this been posted yet?)

I am probably as much for electric cars as anyone here but I see so many headlines about battery breakthroughs that I have come a bit jaded by them. I am confident that batteries will get much better but have decided to take a wait and see approach as to which path that will takes us down. The bigger issue to me right now is the charging network. Will anyone else join the Tesla network or invest in a network even half as good as theirs? And sell electricity at a price competitive with gasoline?