First beta of Opera 11 showcases tab stacking

Tabbed browsing, one of the essential features in all browsers, has evolved yet again thanks to its long-time pioneer. Opera 11 beta introduces tab stacking, a better way to organize your open tabs. Traditionally, tabs were opened side-by-side, but now people using Opera can stack their tabs, grouping them by site or by theme. Tab stacking reduces clutter and makes it easier to identify and work with sets of open tabs. (tisková zpráva, 23.11.2010)