Opera 9.0 Beta 1

Opera Software today announced the first public Beta of Opera 9. This version includes Widgets, small Web programs running in their own windows that are fun, easy-to-use and live on users' desktops. The Opera 9 Beta also features support for BitTorrent, a popular file downloading technology, in addition to an easy-to-use content blocker and thumbnail previews of tabbed sites. And yes, Opera remains available free of charge.
http://opera.com/pressreleases/en/2006/04/20/