After all the waiting, the book is out! Available for example on Amazon , both as Kindle ebook and as a paperback. You can see the actual table of contents in the Amazon preview; in short, it covers the whole range of multitenant related topics. Both multitenant-specific, as well as the old and proven features, that were updated to work with a multitenant database. With a bit of luck, you'll get the book sooner than me - my copy is still somewhere in the mail :-)
I use this blog to publish the small bits I come accross when using the Oracle Database. It's the "every day I learn something new" style.