QuickSilva: Basically when you create a particle you can now create phases, so for example you can say Phase 1) remain invisible for x millisecs, Phase 2) fade in and move to this location Phase 3) start rotating and move over here Phase 4) fade out. The phases are not limited. Each phases allows control over movement, rotation, fading, scaling and visibility. I've used it in HB to magic magic flow out of a point in a stream (by random delay oneach particle before appearing) and then when it hits the destination it stops and fades :-) It's not mega advanced but it does allow some pretty cool stuff.