Nest learning thermostat gets refreshed with a slimmer design

Matt, the founder of Nest, is doing an AMA right now: <a href="http://www.reddit.com/r/IAmA/comments/10tpxx/i_am_matt_rogers_founder_of_nest_and_former_apple/" rel="nofollow">http://www.reddit.com/r/IAmA/comments/10tpxx/i_am_matt_roger...</a>

Any updates to the software? I'd really like to see some kind of API available over the network.<p>Radio Thermostat (<a href="http://www.radiothermostat.com/" rel="nofollow">http://www.radiothermostat.com/</a>) makes a line that's not as pretty, but they provide a web/JSON interface that looks pretty interesting.<p>API doc: <a href="http://www.radiothermostat.com/documents/RTCOA%20WiFI%20API%20V1_0R3.pdf" rel="nofollow">http://www.radiothermostat.com/documents/RTCOA%20WiFI%20API%...</a>

Will Nest work with a dual zone system? (Also does anyone have one of these? I have questions)

Nice, but I'm not spending $250 on a thermostat; I have 10 thermostats in my house.

My home has separate heating and cooling systems. (The heating is done with radiators and the cooling is a conventional AC.) Does anybody happen to know if Nest works in this type of system?

Can anyone comment on whether buying one of these is worth it and if they've seen any savings?

What happened with the patent issues we heard about a few months ago?

I'm curious to know if some of the software features of the new Nest will make it into an update for owners of the first-generation Nest.