Valve Studios will be releasing Portal 2.

This game is an appealing twist on your average shooter. You shoot holes into surfaces and travel through them to enter different areas in a level. Shoot two portals and you can determine where you will pop out – try shooting the second hole into the ceiling and the first into the floor and you can imagine what would happen if you step into portal number one. You can even look through the first hole and see into the other, so’s you know what to expect – especially in terms of landing.

When a mate showed me the original Portal, I was mightily impressed. Highly recommend everyone check it out.