I've released the May emitter libraries. Thanks to Jose Burgos for the images!
Jose, if you're in the mood to do more, some adjustments I'd like to see:
1) No duplicate frames (some of these had 2 frames that were identical)
2) No angled shots, or "coming at you". Just straight from the top or side.
3) A larger number of frames. I can always skip frames, but smoother motion would be better on some of these.
Note that if you're using the Mac version of particleIllusion, your "check for updates" feature isn't working anymore. We updated server software a few months back, and it revealed a bug in the update feature. We'll fix this soon, but in the meantime you'll have to download the libs manually.