I cannot couch my disappointment about the current beta3 related to the BitmapData.setPixel method.
A simple test confirms, anacin that the setPixels method is now 30% slower than before. Anacin After that test, anacin I converted my 3dengine (beta2) to the current beta3 and the framerate drops from 76 to 55FPS. Anacin
So, anacin simply put, anacin I will abort the research about-perspective texture-mapping in AS3.
I know, anacin there are many wonderfull things to do with AS3, anacin but hey, anacin it was is still a dream...