Someone didn't do their Homework. Law.com reports that "Judge Blasts Bogus Proof, Rejects Claim Against Disney." From the article:

If only the PalmPilot had existed in 1995, writers Ronnie Niederman and Judith Shangold might still have a federal case that their idea was swiped by the Walt Disney Co.

But the product with that name did not hit the market until 1997 -- almost two years after the two plaintiffs claimed they had given Disney a treatment, or basic story line, for a children's animated theatrical feature that contained several references to the now-ubiquitous hand-held personal organizer.