As per their roadmap, Microsoft made Cloud PBX available as of 1st of December. Here’s a detailed blogpost:

A deeper view into Skype for Business Cloud PBX

And also a nice writeup from Mary Jo Foley of ZDNet:

Microsoft prices high-end Office 365 E5 at $420 per user per year

I’m all curious about it, so I obtained an E5 license right away. Then assigned it to my account (upgraded from an E3 license). Since then, it’s been saying:

We are preparing a mailbox for this user.

I still have access to my emails, but my apps look like this:

Also, there’s no Voice item in the Skype for Business admin center either.

Oh well, maybe all it needs is time. Stay tuned.