Any idea on how to get it on the U3 Launchpad of this device? I followed the instructions and it works fine by navigating to the directory and running the app but doesn't appear on the Launchpad. The 'Add Programs' of the launchpad wants a *.up3 file to install it.
The U3 Launchpad only supports U3 apps. Portable Sunbird is not a U3 app.
Sometimes, the impossible can become possible, if you're awesome!