I started work on Text File Splitter 2.0 about a week ago. This is a rewrite from the ground up. I'm going to include as many feature requests as possible and make them happen. The main UI is now done. Here's a list of what will be included:

• File pattern  tokens are now plugins. This means that others with a bit of .NET can build file naming rules as tokens. The tokens can be reloaded to add new ones without restarting the UI.
• File splitting strategies are now plugins as well. Same as tokens.
• Using MEF as the plugin infrastructure.
• Source can now be a directory
• File encoding will be kept on split files.
• New logo

Check the blog to see the progress on features, and the new UI.