It seems to take a while for developed a technique. Even at that, it's not something that happens every time. Besides the actions, I think the woman has to be in the correct physical state of readiness too. Her mood, energy level, and any given number of other things have to all be right. We haven't figured out the exact things that have to be situated correctly, but it's always fun trying...
It is very possible but I am not sure what the exact technique is, I think it is like jaybay said, it is either something you have or you don't.
I've only heard of "projectile" orgasim in the movies. I have experianced wet, gushing orgasims with my wife though. So, it's definatly true that female ejaculation can occur (although no one seems to really understand it, and "ejaculation" might not be the exact correct word)
As for projectile orgasims though; maybe if a "pull out" occurs at just the right moment, perhaps the fluid might spurt out a little way. But the feeling of her orgasm while I'm inside her is just too wonderful to miss...
Supposedly that is true, but I have never experienced same. I guess it's one of those things that you either have or you don't. :-)