Thankfully it's a link instead of a download, but I don't know if sharing that link would go against the forum's copyright rules. If someone official says it's ok, I'd be happy to post it. I figure they made it backers-only just so that any issues found before print aren't left to linger in somebody's collection, causing misunderstandings when people assume the draft PDF and printed book are identical.
In quick summary: It's the
ODE rulebook, revised for any errata. What has me excited is that it includes (in some cases revised) rules for the other types of Specialist Infantry [Heavy Weapon Teams, Heavy Weapon Marines, Combat Engineers, etc], Vulcans, Ninjas, LADs, Mine detectors, and Engineering Tasks (revetments, etc), the stuff that was released as rules supplements to ODE.
I was sad to see they pulled some of the basic scenarios out [2 Mk.IIIs attacking, and the 'Ogre Defending' scenario] when comparing to the 6E book, but I figure they're getting moved to the quick-reference scenario sheet instead, since they were minor variations on the other two.