Apple announced Siri on iPhone 4S, which lets you use your voice to send messages, set reminders, place phone calls, and more.

It was only a matter of time until someone replaced the audio in the promo video with GlaDOS! Filmmaker Jeff Heimbuch has done just that, combining Siri, the new assistive voice technology in the iPhone 4S, with GLaDOS, the malevolent AI system featured in Valve Software’s Portal games.

The result is a wisecracking iPhone 4S that has absolutely nothing nice to say about you, ever.

Here are some cool easter eggs in the Siri app. It seems that AI’s don’t want to talk about the ones that have gone haywire..