At first it was open internationally but then they ran into legal issues because every country has different regulations and record labels, etc. I don't know all the details, but to avoid it, they shut out international traffic. Countries like Japan that sprang on to Turntable couldn't use it anymore.
Which is the reason I stopped playing with it. I'm in Canada. As so many of my friends from different countries were on it but not from the US, I suppose the drop may have been quite substantial.
