Opera 10.5 is available for windows based computers. Opera 10.50 is currently available for Windows and comes in 42 different languages. Mac and Linux versions are coming soon.
Best Feature of Opera 10.5: After using the browser for myself I liked the design and the feature i.e Turbo mode, If your using a slow internet connection Turbo mode compresses the web-pages, So web pages loads faster.
You have Private tab or even private window browsing option, Here Browser will clear all the traces of browsing history, And also Windows 7 and Vista os, Makes Opera 10.5 compatible with Aero Glass, Aero Peek and Jump Lists with these platforms.
Web Designers tools for developers -Opera 10.50 includes improved standards support for HTML5 and CSS3 .All in all I’d say its a good browser.
Opera 10.53 Beta Fastest Browser for Windows