Is This Portal 2?

More revelations from the ongoing ARG-decoding, which is currently neatly summarised here. The latest is that they've been able to dial into an Aperture Science bulletin board and download a load of ASCII art. It's quite clearly Portal / Weighted Companion Cube-related stuff, but it wasn't giving much away. But then someone tried rotating some of it...

Whaddaya think? Looks a little Mirrors Edgy to me... And what could these little chaps be?