Ohh awesome, thanks Will!
I knew about Carbide Copper, but I saw it before reading this thread where the surprise was mentioned, and didn't put two and two together.
Should Carbide Copper have a thread in the Announcements forum? I went there thinking that there would be an announcement when the "surprise" was announced but didn't see anything. I read the "about Announcements" post and it seems like a placeholder... ohh well.