The ESRI ArcGIS JavaScript API has been updated to version 1.2. The ArcGIS Server Blog has the details. Remember to update your code with the new version:

<script src="http://serverapi.arcgisonline.com/jsapi/arcgis/?v=1.2" type="text/javascript">

<link rel="stylesheet" type="text/css" href=http://serverapi.arcgisonline.com/jsapi/ arcgis/1.2/js/dojo/dijit/themes/tundra/tundra.css>