I agree with Philip.
I use a small set of the emitters all the time and modify them to suit. Frankly, if I need something special for a once-off effect I have always found something that I can amend in the current library. The number of emitters in the current library is huge.
I also notice that despite Alan asking a few times, there was no huge rush back to him with suggestions for new emitters.
PI is excellent, and the quality (for me at least, mainly used in projections) is excellent.
I would echo the 64 bit requirement, but I would also like to be able to use the emitters in 3d space rather than reverting to lots of masking and keyframing.
What would be really welcome for me would be some tutorials on creating emitters. For example, if you take the last few emitter packs released, and take one or two from each of those – a tutorial in how they were created would be very helpful.
Thanks
STBO