McGraw-Hill’s CEO, Terry McGraw, yesterday confirmed that the Apple tablet would be announced today. In the video he was very excited about working with Apple and spoke of how the announcement would be today and how it’s “based on the iPhone operating system” and that it will be “transferable”, which I’m assuming means everything in iTunes.
He also says that they’ve got 95% of their materials up and ready to run as e-books, and it’s not a stretch to think that Apple has made similar deals with other major publishers as well. This still isn’t official confirmation of the tablet but it’s pretty obvious now that it’ll be coming.