I've heard that they still work, but if anything has been changed since they stopped making them, it will not be up to date.
Agreed.
But, I wouldn't worry too much about that.
The list of attractions that have opened since the last version of Pal Mickey was sold (2008):
Toy Story Mania
American Idol Experience
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If you happen to have one of the earlier versions of Pal Mickey, he also
may have nothing of importance to say about:
Stitch’s Great Escape
Turtle Talk with Crush!
Soarin’
The Lights, Motors, Action! Extreme Stunt Show
Expedition Everest
Monsters Inc. Laugh Floor Comedy Club
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That only leaves about 100+ other attractions that he DOES prattle on about.
PLUS... (what seems like) 2,000 bad pun-jokes about the parks and the characters, in general.
(He's a talkative little guy!)