The pink and purple definitely are, but the blue and green that were originally set for December have been postponed to Jan 9th due to stock issues. I had a green on preorder, since that was originally the shell I wanted a best pal Neliatchi on.
Side note, weird how I've warmed up to the device quite this much, after using the refund I got for a replacement. My purple was too glitchy to enjoy. I recommend to return for replacement if that happens to you! The games like ping pong are so fun once they're actually playable.