Well here is the problem. The right to publish The Book versions of the ARKRM belong to Addison/Wesley. So unless someone can convince AW to sell the rights or publish the new manuals. The only way you can currently buy the ARKRMS is on CD. The developer CD is well worth the money so I really recomend it.
If you program according to the manuals you won't get into trouble when AOS4.0 comes.
The problem some developers have is that they NEVER even attempted to follow the rules and thier program busted with ever update to the OS.
If you follow the ARKRM's your programs should work fine under AOS3.9,4.0,and Morphos.