I've never come across a GBC emulator thats worked on my GP32 yet, but that doesn't mean I'm going to badger every coder under the sun for source code. Part of the fun of owning a GP32 (I think) is checking the news sites everyday to see if just maybe, JUST MAYBE, something new is ready for release.
Perhaps (and this is just a suggestion) there should be a new topic area on the forum which only recognised serious coders could post in, and they could simply just drop in a post once a month to say that they're still working on it, or they've given up or they are having a break. This way we could keep track and then ask for source code with good reason without annoyingly spamming the persons e-mail account.
But I suppose this would remove the freelance spirit of the GP32 scene......a sticky saying what is being built and what isnt would be good enough I suppose.