I just noticed that there are quite a few MDA plugins not yet available in the store:
In particular, the Talkbox plugin would be really fun for getting those Daft Punk robot voices
I'm guessing that the hardest part of adding new ones is creating the appropriate UI - is that correct? In an ideal world I'd find some time to give this a go, as the HOWTO seems relatively straightforward, but my development experience is far more substantial than my almost non-existent DSP knowledge (and free time for that matter). Any estimates at how difficult this might be?