Greetings!   This is Chris Fornof with Open Source Ecology(see the TED talk).   We're doing a bunch of construction in the near future at our Factor e Farm site, and have need of some surveying. While it is perfectly normal to do such things by hand, we're all about cool experimental tools here.   We saw some of the cool stuff pix4. or SenseFly is doing, and we were wondering if we could recruit…