I'm not a software developer but I dabble a bit in scripting. My Exchange setup script for Entourage has gotten me a few nice remarks and I even learned at Macworld that it's being used by folks at Conde Nast and the New York Times.
Back in August I wrote an updated version of the script, version 3.0, and E-mailed it to some folks who had contacted me originally looking for assistance or just sending me kudos. They got first crack at beta testing this new version. One of these folks had even asked me earlier for the changes that I had made. I got responses from everybody saying, "Thanks!" or "I'll test when I can." Great!
A few months later and several requests to others to help me test and I still hadn't heard from anyone about their experiences. I guess karma didn't want me to write the update.