The two announcements were obviously timed against each other. It's hard to tell who is reacting to whom, but my bet is that Quirky is hurriedly reacting to a pending Google I/O announcement this week, and getting the word out by giving the NYT an exclusive [1]. It also looks like Nest has an actual, planned microsite vs Quirky, who only has mention of GE on their website (https://www.quirky.com/ge) and doesn't have much of an official Wink page yet (https://www.quirky.com/wink is bare).
Add to that Apple's Homekit, announced at WWDC, partnering with Osram Sylvania, Skybell, TI, Chamberlain, August, Honeywell, Haier, Schlage, Philips, Black and Decker, Netatmo, Withings, and others. More brands/logos, but it's early.
Regardless, it's at least a three-horse race and we'll see it get worse before it gets better. All have serious brands on board and consumers will be confused for quite some time. A single, open, interoperable standard is coming but the race will encourage a flurry of product investments to get smarter devices in the initial stages.
[1] http://www.nytimes.com/2014/06/23/technology/quirky-hopes-wi...