Yes, they were in the Rigger 4 product. And they were actually pretty neat. Though my favorite thing out of Rigger 4 is still the Nadeshiko drone. Those things were perhaps the best 'home' for an AI that wanted to blend in I've ever seen. And the fact that they were able to take (limited) cyberware upgrades and wear armor as well due to the limb structure made it possible to do something I've always wanted to do, but never had the chance to: an AI Street Samurai. I like customization. It was one of the things in 4th that really drew me in to Shadowrun as a system that they've basically killed so far in 5th. They haven't gone so far as to make it a comparison between D&D 3.X and D&D 4th, but still, I wish they left the customization stuff in, instead of dumbing them down. I shudder to think what it will look like when we get the rigger book.