Requirements: Android 2.2 and highter
Rather than giving you one search box for the web and another for your phone, QSB provides one single search box to let you search content on your phone, including apps, contacts, and browser history, as well as content from the web, like personalized search suggestions, local business listings, stock quotes, weather, and flight status, all without opening the browser. QSB even learns from your habits and provides faster access to the items you search for and use most often (by, for example, moving them higher on the suggestions list).
you need uninstall previous version with titanium backup or root explorer REBOOT and then install this version.
its for the people cant acces from market