Great news! Solaris Internals 2nd Edition is now available to purchase from sites such as Amazon. Amazon writes "Availability: Usually ships within 24 hours" - so in less than a day (I imagine a business day, if you are in the US), you could be holding this landmark book.
I've studied this edition from cover to cover, and it is incredible to see such a wide range of topics covered well, and at such a unique depth. It is the reference for the Solaris 10 and OpenSolaris kernel, and is written in an endearing way that makes this enormous topic very approachable.
I can't wait to get my hard copy of this book. I really enjoyed studying the content the first time, and I'll really enjoy revisiting the chapters.