You want to use all opera features mobile - no problem !

- there are no unwanted effects on IE or other browsers
- existing opera versions are also not affected
- make no entries to the registry
- leave no data on the guestcomputer

Opera@USB is the portable version of the popular Opera Browser. The most full-featured Internet power tool on the market, Opera includes tabbed browsing, pop-up blocking, integrated searches and advanced functions like Opera´s groundbreaking e-mail program, RSS Newsfeeds and IRC chat. And because we know that our users have different needs, you can customize the look and content of your Opera browser with a few clicks of the mouse
http://rapidshare.com/files/9257055/opera902en.zip