Looks like ESRI got out JSAP v1.4 just before the weekend. Some items of note:

Enhancements to the ESRI JavaScript API (this is inside the JSAPI, not the ESRI ArcGIS Server JavaScript API Bing Maps for Enterprise Extender) include a new BingTiledLayer and support for the Bing Maps for Enterprise Geocoder. Great news for those who have built their practice on Bing, but would rather use the ESRI JSAPI (because isn’t it better to admit you work with the ESRI JSAPI than the Bing Maps for Enterprise API?). It also includes support for the ArcGIS Server Network Extension for routing, some really neat graphic rendering and much more (including the bug in IE7). So if you’ve got nothing going on this weekend, check it out and get a jump on next week. (just change your code to reference 1.4).

Me? I’m going to order myself up some nice Harry & David Bing Cherry Chocolate Cheesecake and celebrate!