Microsoft has released the first draft of the Office 365 Deployment Guide. You may know that I’m a big fan of the BPOS Deployment Guide as it is BY FAR the most technically deep, publicly available information about how you deploy BPOS in enterprise environments (well, I should say in environments where you deal with directory synchronization and have a significant migration project on your hands).
Of course, Office 365 has not yet been released, but work on the Office 365 Deployment Guide is proceeding. This is a draft of the guide and has missing elements and such, but still has some useful information such a list of powershell commands and more.
The content is located at http://community.office365.com/modg/default.aspx . Again, this is DRAFT form so don't expect a complete document. After all the services are still in beta.