Tech Time ::: Nest acquired by Google--What does this mean?

So for a couple months now, there were rumblings that Nest was being courted by Google, and the rumblings were quite true, evidently, as Nest Labs was just acquired for $3.2B dollars. Yes, that's three-point-two-billion-dollars. In cash. 

Tech Time::: Nest Thermostat

This little gizmo, the Nest Thermostat, looks fascinating, and like it would fit in well in a home by Novogratz.  It's a thermostat that will monitor your patterns and adjust to your living accordingly, and is controllable through your smartphone.  My husband and I have both been intrigued by this item for months, after seeing it around the net for a while, and on "I Want That" on DIY Network. We are both trying to justify it to ourselves, even though our current relatively new (6 years old?) thermostat works perfectly fine, and has actually saved us substantially since we installed it not long after moving in.