I think you misunderstood my sentence. Folks on these threads complain because Android uses Dalvik, which puts a layer between the software and cpu and thus compromises performance. ART does not have this "layer" and can significantly improve performance. Sorry if this sounds too simplistic. Regardless, I've seen it demoed on an S5. It is impressive.
The fanboys are assuming it stands for 'Lollipop' because google is naming their releases by candies.
Which fanboys are you referring to? The apple fanboys, maemo fanboys, android fanboys, Jolla fanboys, N9 fanboys, windows fanboys? Wait... are there windows fanboys? I dunno...