Well, I'll cut to the bone right away. I have been wondering if it would be possible to add "fake" SMP-support to the CLI-encoder (or pretty much any diskwriter-plugin available). Instead of just using one session of Lame (for instance) at a time, it could double it, so that SMP-enabled systems can encode two files at once. Then an option to enable 4 instances could be added too.
I don't know if this sounds realistic at all, or if there's a demand for this (I seriously doubt it) but I just thought that it seemed like a relatively small addition. I could be wrong, but it doesn't seem as if it takes tons of coding to make a feature like that.
Thank you for your time.
Peace.