Microsoft boasted that Convergence was the biggest ever with more than 10,000 attendees. Call that 10,800, someone said. And usually these counts include Microsoft staff, exhibitors, press and analysts. But some said comparisons are skewed by the fact that Convergence Europe is no more and more than 2,000 came from the international market. One tweet had the overseas contingent as 21 percent of the total, which suggests the domestic count is down over three years ago.