How much would it cost to build the Death Star?

http://www.centives.net/S/2012/how-much-would-it-cost-to-build-the-death-star/

Lunar mineral turns up in Australia

http://www.theregister.co.uk/2012/01/04/tranquillityite_moon_rocks_on_earth/

Researchers increase charging rate & capacity of lithium ion batteries by a factor of ten

Yet another new battery which promises much.  Reserving judgment for now.

+ 10 x capacity of competition

+ 10 x charge rate

-  Relatively rapid deterioration of charge capacity with use

+ when the capacity has halved after a year of use, it's still five times better than the competition

http://www.engadget.com/2011/11/16/researchers-increase-charging-capacity-speed-of-lithium-ion-bat/

Another promising lithium ion battery advance

http://gm-volt.com/forum/showthread.php?8973

Tesla Model S (video)

http://www.youtube.com/watch?v=cx6YLrjJ7YA&feature=related

Lithium-air Batteries May Give Electric Cars The Same Range As Petrol Cars

http://www.risoe.dtu.dk/News_archives/News/2011/0328_Li_battery.aspx?sc_lang=en