kindwarrior

Apple's Numbers: Innovative, User-Friendly Spreadsheet Application

You have to love wikipedia

I remember "Glider Pro" it was written by a fellow HyperCard developer "John Calhoon". Your reference made me do some web research. John did in fact sell the game to Casady & Green (and yes I did misspell it above). There's an article on the game here.
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This caused my to search for "Spreadsheet 2000" and, sure enough, there's an article here (with a screen shot and a mention of Prograph)

The Prograph link will take you here where you can learn that the idea of prograph is not entirely dead. According to the article BTW the author of Prograph was Pictoius not Peregrine -- I may simply have been wrong here but something vague in my memory is telling me that there's more to the story.