In announcement that’s sure to make video game fans everywhere squee with sheer joy, Valve has declared that they’re releasing level editing software for their smash hit game Portal 2! At last, you can create all the Portal puzzles you want, share them with your friends, and download other fan-made puzzles from the community! This could be the greatest thing ever! And hey, they even got Cave Johnson himself – J.K. Simmons – back for this announcement video. Brilliant stuff! I can’t wait to play around with this.