Download point source component
Yes, believe your eyes.
I've made an Emitter 2.0 point source component :)
Now you can tweak the parameters in the Component Inspector panel.
You don't even have to write a single line of code!
Also, I've made an Emitter 2.0 performance monitor component.
It monitors the engine's performance.
And it gives you a quick info of how man particles are currently present in an emitter.
Download performance monitor components