Windows only: Snowbird is a tiny, portable file explorer packed with features, and fitting well into a flash drive toolkit.
In our testing, Snowbird was quite responsive and, compared to Windows Explorer, extremely fast when dealing with network locations. There's a built-in copy handler which, while not as robust as the dedicated copy handlers in our Hive Five, offers error correction and the ability to pause transfers. More than the default Windows copier can do, that's for sure.
Snowbird also sports breadcrumb navigation across the menu bar, an integrated search tool, and support for basic mouse gestures. Clicking the middle button and moving the mouse in various directions allows you to navigate through the directory structure. The only shortcoming of Snowbird is that, for some reason, the developer hasn't added drag and drop support yet for copy and paste. You can use keyboard shortcuts and the right-click context menu, but there is no drag and drop between folders within Snowbird. That issue aside, the application is speedy and impressive for its tiny footprint. Snowbird is freeware, Windows only.