[Someone]

"If it was free to edit, but $$$ to publish, Office 365 would be much more compelling."

1. How many documents do you never share with anybody else?

2. The same model seems to work fine for Adobe Acrobat.

Especially w.r.t #2: if they get the editor on many, and the viewer on a large fraction of devices, this might hurt PDF a bit.

[webjprgm]

I generally consider PDF to be a static document, something meant to freeze the current appearance and layout as part of making it a final draft.

Would I start to think this way about Word docs? Is that good for MS?

[Someone]

That's what I wonder, too, but I dare not give a definite answer.

Microsoft has tried to displace PDF before (with XPS), so I'm sure they will be happy if they could take something away from Adobe. One thing I'm willing to take a stab at: it won't happen overnight or even in a year.

[codeulike]

.doc will never be seen as a static format - there's too many copies of normal Word lying around all over the planet.