Dojo 0.9 Beta has been released. In Dojo 0.9 dojo.debug() is no longer your friend. They have ported Firebug. dojo.firebug() is a port of Firebug Lite.
What this means is that if you are viewing your app on a browser without Firebug, not only will you not get runtime errors, but you’ll get a debugger… actually a console! No more messy text all over my page. Just another reason why Dojo rocks.
The article is here.