Opera 10 enters beta with the unstated goal of becoming more than a mere browser. Available for Windows, Mac, and Linux, the Norwegian program hopes to become a speedy utility--Turbo-charged, in their words--that handles browsing, e-mail, RSS, and torrents with robust features.
The most obvious of the changes in Opera 10 are the new default skin, created by British designer Jon Hicks, and a revamped Tab bar. The skin, Opera says, will continue to evolve before Opera 10 is finalized. Double-click or pull down on the bar below the tabs and above the location bar and you get thumbnail previews of each tab. The previews are resizable, so users who want to see only a small sliver of a tab to identify it visually don't have to worry about sacrificing screen real estate. The bar doesn't remember your last position for it when manually adjusted and then closed by double-clicking, but it does remember when you restart Opera.
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Source: CNET