http://ftp.mozilla.org/pub/mozilla.org/firefox/releases/bonecho/alpha1/
I'm downloading it now.  We'll see how it looks/feels!  
<edit> looks/feels pretty much the same.  Be prepared to lose extensions for now, though.  I don't really see much difference.  Maybe I shoudl read the changelog :)
			
			
			
				Actually, it was available a few days ago, but just not announced :P
			
			
			
				The source wasn't, though.  
			
			
			
				I think I will wait untill the final version is out to get firefox 2
			
			
			
				So iago, what changed?
			
			
			
				I refer you to their changelog to answer that question.  But I don't feel like finding it, so refer yourself.