The Asia Times has a story from right before the bombings, suggesting that Uzbekistan might have been considering sending troops to Iraq in exchange for American aid. Could the recent attacks have been connected to this report?
By the way, in the year 1401 Tamerlane--known in Uzbekistan today as Amir Timur, a national hero along the lines of Alexander the Great--occupied and destroyed Baghdad with his Mongol army, ancestors of today's Uzbeks.