Show is a project mainly written in JavaScript, it's free.
simple readonly frontpage to tiddlyspace
Simple SPA for readonly view of a TidldySpace.
See http://cdent.tiddlyspace.com/show to see it in action.
It's nothing special, just a proof of concept on making a readonly frontpage on a space, without TiddlyWiki, using the DefaultTiddlers and SiteTitle to get things rolling.