Yes! We added this late in the campaign, so we can't update the pledge levels to add it in, but: everyone who backs us at a level that allows access to the stretch goal content and the Directors' Commentary will get the text of the game before it goes through copy-editing and proof-reading within a week of the campaign ending.
We do, yes - Mary is our producer and business manager, and she's good at it. She's written more about it here: http://unboundrpg.com/9-things-goblin-quest-taught-me-about-how-to-run-a-kickstarter-and-what-were-doing-differently-for-unbound/
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