Here's a hint of what is coming shortly... An Indigo plugin to allow you to compare your Heating / Cooling vs. your Temperature set points.
The graphing component requires the browser to be able to reach Google. I am currently using the Google Charts API to generate the chart... But all the data is stored on your computer, the data to be charted is *not* stored on Google's server. They are just generating the graphic...
I am just currently working on some cosmetic improvements, but I expect to have this available for Download on Wednesday or Thursday....
Updates, and information will be available from the Blog @ http://www.schollnick.net/wordpress
(And I'll cross post here, but the Blog is updated first....)