Robots
They have returned, and so has bikes.
Forum Discussion
To me, it looks like the robots are really done: a fully developed, controllable life state with their own unique needs (Fun, Social, Durability and Energy!) and quirks such as having their own customizable personalities, as well as not being able to go out in the rain or get wet. I appreciate that they can learn and enhance themselves, and that they require constant maintenance without ever aging. They even have their own form of "death" -- if you leave them broken too long they will be reduced to nothing more than a scrap pile.
