If you want to get your hands or test features on newly released Opera 9.50 with installing, just try Opera@USB, a project of markus obermair austria. Who has ported Opera 9.5 to run on Flash / USB Device. All you need to do is, download, unzip the program to a foleder on your hard drive or to a USB / Flash drive. The Opera@USB doesn’t effects your IE or other browsers, make no entries to the registry, works with every Windows PC, and leave no data on the host computer.
Note: Opera has not made any official release to run on portable USB / Falsh drives.
Source:→ Download Squad