Wow. Some users are having problems using both cores on the O/S with software let alone 64 bit and 4. I don't think you are going to see Micropoo explain this, provide the tools, and have it working so everyone can use it, any time in the next few months. That's just my opinion. And what do you know of the compiler being used, if it is even available for 64 bit, and then optimized for quad cores etc. Nice idea in theory. In that this company does more for the buck with what they have than the average, I suspect you are going to see it sooner than later.
For now if you have a 64 bit system you cannot use a bunch of stuff, like the VSC Dxi most of us used all the time.
Maybe if you contacted them and offered to pay most of the development costs they would make you a copy though. I can hear the crashes from here. Undocumented O/S features, bang! Down again.