I'm also interested to know if there is a planned release of versions x.x.330 of the Additional Features plugin.
It looks like the the Activity modules added to the MMA in 3.3 all make use of the new "exporter" class. I tried tinkering wit hit a bit myself, but it looks like there is a lot of new stuff to be added to make this work in older versions. Maybe Dani or Juan can weigh in where this fits in the timeline?
-Nick