After having skipped the nga download of 2006-03-01 I have updated geonames today with the 2006-04-10 version.
The country with the most modifications since our latest nga update in February 2006 is Afghanistan. This is not really a surprise if we know what nga is. I cite from the nga faq :
The National Geospatial-Intelligence Agency (NGA) provides timely, relevant and accurate geospatial intelligence in support of national security. NGA, formerlly the National Imagery and Mapping Agency, was established October 1, 1996 to address the expanding requirements in the areas of imagery, imagery intelligence, and geospatial intelligence. The Agency changed its name on 24 November 2003. It is a Department of Defense (DoD) combat support agency that has been assigned an important, additional statutory mission of supporting national-level policymakers and Government Agencies. NGA is a member of the Intelligence Community and the single entity upon which the U.S. Government now relies to coherently manage the previously separate disciplines of imagery and mapping. By providing customers with ready access to the world's best imagery and geospatial intelligence, NGA provides critical support for the national decision making process and contributes to the high state of operational readiness of America's military forces.
It is notable however that no modifications are released for Iraq. I guess the Iraq modifications will only be released after the political situation in Iraq has stabilized.
I have posted detailed numbers in the geonames forum.