Yahoo Messenger 9.0 became available on Tuesday–a week after Yahoo’s target launch date and interestingly, a week after Microsoft released its beta update of Windows Live Messenger. Yahoo Messenger 9.0 as dramatic an update of its instant messenger as Windows Live beta is of Windows Live Messenger 8.5, and it introduces some pleasant improvements over version 8.1 that will satisfy Yahoo loyalists. Among them are a redesigned interface with more skins, more space, and the excellent ability to see scaled public images and videos in the chat window.