All the Key Asian indices were weak today. The Nikkei was down 11 points at 15,525. The Hang Seng has dropped over 200 points to 27,522. The Straits Times and Shanghai indices were also weak.Updated at 0845 hrs: The Asian markets were trading on a mixed note in morning trades. While the Nikkei was up nearly 100 points at 15,633, the Hang Seng has dropped 100 points to 27,638.The Shanghai and Straits Times indices are also weak today.