(Nest) The circular screen tells you how long it will take for the zone to reach the desired temperature, so you don't overcompensate in order to get warm or cool quicker. And the Nest thermostat rewards you for thinking green — shaving a few degrees off a temperature setting — by displaying a glowing leaf.
Thermostat Reinvented to Improve Efficiency
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OCTOBER 25, 2011
Wilson Rothman, MSNBC

A statement of bold industrial design and elegant user interface, the Nest is a smart, widely compatible replacement for your old-school thermostat. Think of it as efficiency through smarter design. Every time you adjust a heat or cooling setting, it learns. After about a week, it starts making the changes for you, and over time, smooths out the transitions in temperature for better efficiency.
Read the column by Wilson Rothman and see more photos on MSNBC: gadgetbox.msnbc.msn.com/
Nest: www.nest.com