I picked up a 2600 adapter for my 5200 today and I noticed something really odd about it. Instead of having a textured surface, the plastic on the adapter is totally smooth. Even stranger, there's absolutely no markings on it whatsoever. There's no Atari logo and "VCS Cartridge Adaptor" on the front, and there's no trace of a serial number sticker on the back. Is this a prototype of some kind? I'll put up some pics of it later today.