I was amazed to get a email about this a while ago, but the My Pal Mickey has been discontinued.
My daughter got one years ago, and she loves it. Actually, the husband, and I like it also.
While I am sure there were some issues with the item, I am sure that it was a success. Disney only states that even though the My Pal Mickey is discontinued, he will continue to operate. You can still find some at select locations throughout the Disney Resort.
My Pal Mickey is an item that you carry around with you, and he plays interactive games, and gives important park updates, like times, and Fastpass info.