My colleague and I are working on an open source cross-platform project to manage gists. It's in a beta stage - gistoapp.com.
It current feature list:
- Advanced search
- Enterprise log-in
- Tags
- Syntax highlight
- Grouping by language
- Quick snippet actions
- Copy to clipboard
- Copy file contents to clipboard
- Editor settings
- Theme color changer
- Drag and drop to create files
- Markdown preview (with emoji)
- AsciiDoc preview
- Comments
- Web app
Full source, and downloads are available via github.
