Gizmodo is reporting that McGraw-Hill, publishers of the Math and History textbooks we lugged around as grade schoolers (and later as college freshmen), has confirmed that tomorrow's Apple announcement is a tablet that'll do everything we've ever dreamed of, including running an OS resembling that of the iPhone's.

MacRumors were the ones to actually catch the slip on a CNBC segment, with McGraw stating the following:

Yeah, Very exciting. Yes, they'll make their announcement tomorrow on this one. We have worked with Apple for quite a while. And the Tablet is going to be based on the iPhone operating system and so it will be transferable. So what you are going to be able to do now is we have a consortium of e-books. And we have 95% of all our materials that are in e-book format. So now with the tablet you're going to open up the higher education market, the professional market. The tablet is going to be just really terrific.

Well, folks, looks like we can look forward to gearing up for the Apple Tablet after all. Thanks, McGraw-Hill. Though we lamented you all throughout elementary school, you've redeemed yourself with this juicy little spill. Check out the video.