I downloaded this yesterday, and was up until 7am this morning playing with it! It's awesome!
My laptop is old & not very powerful so the results were a bit jerky, but I'm blown away by the whole concept!
I do have one comment/issue though:
I'm using the PLE version of ARmedia, and SketchUp7 for Windows. The included target is 80mm square, but when I load a model & import the target into SketchUp the virtual target is 2032mm, ie 80 inches (unit preferences in SketchUp are set to mm). This means that any model I want to view at actual size, I have to scale up by a factor of 25.4 (25.4mm = 1 inch).
I don't know if this is an issue with just me, or if it's the same for everyone. Is there a way for the virtual target to be reduced in size? I tried scaling it in SketchUp but it just defaulted to the bigger size.