Dê uma olhada no link , ele é muito legal e funciona no seu navegador local. Se você tem algo como DropBox ou Live Mesh, fica ainda melhor.
But it's not just a wiki! It has very powerful plugin capabilities, so it can also be used to build new tools. You have full control over how it looks and behaves. For example, TiddlyWiki is already being used as:
* A personal notebook
* A GTD ("Getting Things Done") productivity tool
* A collaboration tool
* For building websites (this site is a TiddlyWiki file!)
* For rapid prototyping
* ...and much more!