In the description of that video a further video is linked:
http://www.youtube.com/watch?v=FVvthxIt_6M
Games may work on Intel graphics, but you won't get an enjoyable experience.
Right now I got an AMD/AMD System. As soon I can run any games at high (or even max) settings with ~60FPS with Intel graphics, I'll switch (except AMDs open source drivers get usable for high end games).