Wow, this is a year old thread! I was thinking Jens was back...
Nobody mentioned TrueBasic which, I think, was largely sold in North America. It's claim was portability between systems.
Perhaps it's in the water, but I've just recently started relearning to program basic on the C64. I was getting into it when the Amiga was released and never went back. Who knew poke 53280,0 could be so much fun!
Bob