Because Aperture Science would never release something as plebeian as a pinball table. Coming next week to Zen Pinball 2, Pinball FX 2 and whatever other pinball platforms Zen Studios has running about causing trouble, Portal Pinball reunites fans of Valve's first-person puzzler with the likes of GLaDOS, Wheatley, Atlas, P-Body and the ever talkative Chell in an all-new, incredibly scientific way.