Microsoft is playing at the integration game. The Surface Hub is a knock-out, they gave it a decent whirl at the Surface Pro 4 (honestly, it's the best far note-taking device on the market IMO simply because the PixelSense display[1] is so stylus friendly - writing on it is nearly like writing on paper), and their very very crummy phone apparently is going to run native Win10 binaries on the new 4-core ARMs so they can leverage all those previous apps and throw them into the ecosystem.
[1]http://www.anandtech.com/show/9767/microsoft-surface-book-20...
I really wanted to like the Nokia 1520. The screen was fantastic. Man, it drove me crazy though.
If you have four people per meeting being paid minimum wage in the UK (~$10), you only need to save about 15 minutes a day for a basic hourly cost to even out.
I'm pretty sure I lose a few minutes a day waiting for a single meeting room to be setup properly, as the speaker has been taken one day, it's logged out, someone forgets a cable, etc. And I'm just one meeting in those rooms.