It allows buyers many countries (more than PayPal, including Middle East) but it is still only for US merchants.
I use it to get money from clients in countries not supported by PayPal. http://checkout.google.com/support/bin/answer.py?answer=48115
Cool! That's 133 countries there to accept payments from. (India can "send" payments.) Now only if one could also withdraw in those same countries... (India cannot "get" payments.) I wish when they open, they use the same PIN method to verify address to send a check payment.