The application is designed to make your Pocket PC more usable, as well as adding rich graphics and 3D effects to your user interface. It definitely represents a more finger-friendly way of navigating Windows Mobile.
Touch Shell Free completely revamps the Today screen, adding shiny new menu icons along the bottom of the display and giving over the main chunk of the screen to the clock display. There are icons for home, contacts, file browser, weather, media player, and connectivity. Clicking any of these will produce a gorgeous animated transition and the menu for that item will be loaded.
The design of the contacts manager and file explorer sections is particularly impressive, because it facilitates faster and easier access through larger buttons. The media player also looks great, although ultimately it's just a one-screen facade for Windows Media Player. And I guess that's the crux of Touch Shell Free - it's offers a nice new way of navigating through Windows Mobile, but ultimately it doesn't change the functionality or usability of any of the core tools in the operating system.
Nevertheless, Touch Shell Free is well worth downloading for anyone who wants to make their Pocket PC look a bit cooler.