The problem I have with Google tech, especially after the new Nest stuff has to come to light, is that there's no guarantee they'll support it for very long. It's entirely possible that I'll incorporate this into my workflow, just for Google to kill it off a year later.
Why don't they just make a convenient set of clients or extensions to map into a product that's not going to disappear next quarter, like Drive/Docs/whateverthehellitisnow.