O'Reilly Safari Rough Cuts are manuscripts that are developed but not yet published, available through Safari Books Online - essentially a way to get access to books before they actually hit the shelves. The Rough Cut version of my upcoming Adobe ColdFusion 9 Web Application Construction Kit, Volume 1: Getting Started is now online. Volumes 2 and 3 should be posted there shortly.
I'm just wondering since I've seen reviews of your books complaining about spelling and programming errors which should have been caught early on.
Do you know if the publisher intends to release this series in digital format (preferably epub - the iPad seems ideal for this)?
Lee, the publisher gets to decide that. There were e-editions of the previous versions, I'd expect the same this time.