Watch: Portal 2 E3 demo gameplay, the gel tech

Valve has released the final part of the Portal 2 E3 demo gameplay presentation today, to give us a little sneak peek on the new gel technologies, the propulsion and the repulsion. Watch it after the jump!

Valve has released the final part of the Portal 2 E3 demo gameplay presentation today, to give us a little sneak peek on the new gel technologies, the propulsion and the repulsion.