yes, the Free HVAC/R Project has been restarted. I am working with a spanish engineer to restart developing the program. The idea now is to create a software really for the professionals - i.e. very easy to use but yet powerful (and yes, we have to admit, not so graphically-attractive, but this is probably good).

For the time being we have developed a little GUI project with wxWindows and we are planning to wrote the program in high-level style with the language Lua accessing some "deeper" functions written in C/C++.

The GUI is really not interesting for the time being, but we have something good for you: thermodynamic properties of many fluids, that you can grab in comma separated values below (I also have the values of some other few fluids like ammonia and water locally, I will upload it (~15 Mb uncompressed) as soon as I can -- these modem connections are reeealy slow).

Nitrogen
Oxygen
R-22 (yes, our good old fried)
R-123
R-124
R-125
R-134a (our new friend :))
R-143a
R-152a
R-32
Carbon Monoxide
Carbon Dioxide
Methane
Ethane
Ethene
Propane
Propene
Butane
Isobutane
Pentane
hexane
heptane

And thanks for the folk at SourceForge who provides us everything it all.