Sneak Preview of new eFactor calculator for SANS204

This is for South African Architects, to assist in the SANS204 Fenestration calculation for energy efficiency in buildings. The calculator on a phone idea came to me while doing the SAIAT 10400 XA course, I figured if only I could create the smartphone app that could be sneaked into the course (workshop) and I simply add the new values and it showed me the long hand calculation. I turned out to work like a dream. It is in essence a manual assist calculator specifically for the working out of the energy efficiency in a closed area. Unfortunately it is not yet ready for release, there are a few hurdles to resolve. Watch on youtube (better size?) http://youtu.be/4jkP6mI1wXY