SpaceX Launch livestream (starts at 12:50PDT)

Weather is 60% "go" ... Lightning and clouds are still a concern

Schedule:

                PDT      ET     GMT     BST
    * Webcast: 12:50   15:55   19:50   10:50
    * Liftoff: 13:10   16:10   20:10   21:10

Please correct me if I'm wrong - it's the best I can do!

NASA webcast: http://www.nasa.gov/multimedia/nasatv/#

Currently live.