Portable Opera 10.50 Web Browser
Opera 10.50 Portable web browser brings all the Opera 10.50 sweeties to your portable USB Pendrive. Being a no-install standalone, it permits you to give the new Opera browser a clean-test on your Windows platform, just delete all the folder it creates when testing is over.
Also available for download at Opera@USB is an upgrader that majestically upgrades your portable Opera 10.X to portable Opera 10.50.