Yeah, looking forward to the Echo integration with the Nest as well, I don't have Wink as of yet. I also ordered the Dot, we're going to let it connect to our BT speaker upstairs, it'll be a nice addition. As for the IFTTT stuff, for the most part having to remember the commands combined with latency makes it pretty unusable for me, although I really like that Amazon baked it into their product.Adding to my post above. Amazon and Wink recently added Echo control of any Wink-compatible thermostat, including the Nest, so I currently have voice control over my thermostat. I just tell Alexa what temp to set (though the Nest usually knows anyway).
And apparently, Amazon and Nest are bringing Nest control to the Echo even without a Wink hub by the end of March.
I've also recently set up IFTTT triggers via Echo to control my Harmony remotes. So I can now say, "Alexa, trigger living room TV" and she'll turn on the TV for me, set the channel to CNN and set the Hue lights in that room to TV-watching mode.
I've pre-ordered two Echo Dots to bring voice control on-the-cheap to a couple other rooms where a high-quality music speaker isn't necessary.