"The PC and Mac editions of Portal 2 contain a map/file named e1912.bsp while the PS3 and X360 versions don't have this file. It might be related to the ARG."
C'est pas fini.
Pire encore
The Potato ARG wiki states that they received a TXT document within a password protected Winrar file. The document containted the following:
"---LOG FROM [ REDACTED ], BY J.H. TO C.J.---
1. We designed the entire thing to be very, very durable. It was easy to get the materials since everyone's been thinking
it's a simple icebreaker ship. Ha.
2. We have made sure to strip it of anything not necessary, so that we have plenty of space for it. It doesn't have any
backup supplies in the event the crew runs out of food, though. And there isn't much food onboard in the first place.
3. In the event you need to send it off all of a sudden, use the OR box with code 'hb1'.
That's all, C.J. Not much else I can tell you other than this won't leave a blight on our record. Mesa is going to be sore
when they see what we've done."
I'm presuming C.J is Cave Johnson, not sure who the mysterious J.H is though, funny because my initials are J.H (piece of useless information I know).
C'est louche tout sa 