Source - http://www.cheapassgamer.com/forums/showthread.php?t=291604
My screen shot of my free beta - http://lulzimg.com/i17/255921.jpg
Not sure if this has been posted anywhere, but if you register on Gamestop's Ireland website (http://gamestop.ie/core/common/default.aspx) they will send you a beta key for Gears of War 3. Just click the banner on the top and register!
It is while supplies last so hopefully they still have more.
Originally Posted by thisboywillbreak View Post
If all goes well they will eventually email the code to you (usually within a few days it seems). Someone also mentioned that s/he didn't put Ireland as the country and still got emailed a code. You can redeem them now, but it only downloads a small file that says "Coming Soon."