2 weeks before the pre-order release
You cannot get a demo for Portal 2, and if there were it would be on Steam as Valve (the creators of Portal 2) distribute all their games there exclusively. However, if you haven't played the first Portal game I would recommend it, and if you like it you'll be sure to love Portal 2!
14th of July
There will be no demo
Portal 2 comes out on April 18, 2011.
no but Dead Rising 2 Case Zero was made as a demo for Dead Rising 2
The demo comes out October 28, 2009.
the demo of star worse the force unleashed 2 will reales a month before the game wich comes out october 26 2010 and the demo will come out September of 2010.
I bet they won't even have a demo or it might come out the next month like COD WaW
Yes you can.
You're an idiot
Tuesday 25th January
The beta demo for those who are signed up....will be released September 10