To see MageBridge in action, you can visit the demo-websites below. Note that all demo-websites will be wiped-out once per day, destroying all changes made up to that point.
This demo-website contains a default Joomla! installation and a default Magento installation. Joomla! uses the template Protostore, while Magento is also configured to use its Magento Default Theme. Both themes are unmodified, so the combined theming might contain some small glitches. It gives you a good impression of what the default looks like.
Besides seeing how the frontend works, you might also want to checkout the backend: See how you can add new Menu-Items to Magento pages, switch Joomla! modules with Magento blocks in them, checkout the various configuratioin-options that MageBridge has to offer. This Joomla! environment gives access to those parts that are influenced by MageBridge.
The multilingual demo use MageBridge with Joomla! 2.5+ multilingual core. MageBridge binds a Joomla! language to a specific Magento store. The language-configuration in Magento allows for translation of system-text as well as products and categories.