Just tested with the latest maverick desktop amd64 image (20100928) and it's still kind of an issue: with a mic plugged in, I can hit the mic and headphones to get it to pick some sound, but it doesn't get voice at all -- I suspect the sound levels are too low and there is no way to change it (it's all mixed out).
Furthermore, jack sensing doesn't work for the speaker/headphones plug; I have something plugged in and the sound isn't redirected, it still comes out the integrated speakers.
Just tested with the latest maverick desktop amd64 image (20100928) and it's still kind of an issue: with a mic plugged in, I can hit the mic and headphones to get it to pick some sound, but it doesn't get voice at all -- I suspect the sound levels are too low and there is no way to change it (it's all mixed out).
Furthermore, jack sensing doesn't work for the speaker/headphones plug; I have something plugged in and the sound isn't redirected, it still comes out the integrated speakers.