Don't know. Could be a lot of reasons why he's not involved in future development. Hopefully nothing bad........
But this is open source, so the code is there for us to modify. I'm not too familiar with C/C++ but there are some things I'd like to fix up. Maybe this is a good opportunity to start picking apart the code to find out how it works. Its a great piece of software, runs reliably and its compatibility with WeatherLink means I can always take the data and go back to WeatherLink should that need arise.