Um, this actually sounds like a good idea.
I'd tell you I don't like Office365 but then I found it was actually a very effective way to get Office for my whole family, so I'll adapt that position to "yeah ok, it has a use case."
From a business standpoint though, listing out the roadmap - even partial, and with limited timescale - is a really neat idea, and I believe will really help people get involved and behind the ongoing development process in a way that I haven't heard from others before.
So, uhm, handclap to Microsoft? Yes, I think so. *clap*