LightTable is truly terrible. Adobe beat that team with Brackets without even really trying, and all of the gimmicks it promised have been available in vim and subl for a while. They should do something else with their time.
not true at all. it has this thing called the browser in it, as well as a completely live hooks and a modular system. this here http://www.youtube.com/watch?v=gtXpOD6jFls is impossible in any other editor.