In the SiteTitle tiddler you can define the title of your TiddlyWiki. When you first create a TiddlyWiki it defaults to 
TiddlyWiki
However you can edit it to display anything that you choose.
bag
tiddlywiki-com-ref_public
created
Fri, 11 Feb 2011 16:13:38 GMT
creator
matt
modified
Tue, 15 Feb 2011 15:12:00 GMT
modifier
matt
tags
shadow