Please don't misunderstand the distribution chart that Rob posted.
The chart was simply a distribution of the 186 people that downloaded his recording of the conference call. Hence, the lower numbers for some countries that what some may expect.
The number of participants that tuned in live for the CC, either online or by phone, as well as those that listened to the recording as of Thursday morning according to Chris Chu was 650. (Thanks fairchij)
Hope that helps clear things up for some. :)
Green