Buzz on the Steam forums seems to be that those who got all the regular potatoes (35-ish) and the golden potato from the ARG just got gifted the Valve Complete Pack including Portal 2. However, only HL2+EP1 are re-giftable, so there's a lot of people that just found out they won...a bunch of stuff they already had. Kinda seems dumb to give away a prize to the group of people most likely to have already purchased that prize, but then again, episodic gaming seemed like the savior of the gaming industry at one point. To repurpose the immortal words of William Goldman, the games industry is clearly just like Hollywood, "nobody knows anything."