Which lens do you use?

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http://ubuntuforums.org – I've been using Ubuntu for about a year now and never knew what a Unity lens was until a couple days ago (yup, that's how much I pay attention). I expect new lenses are coming out all the time and I wanted to start a thread that would keep people informed of new lenses as they are being released. Post your favorite lens and the installation method. Add a screen shot if you wish (thumbnail with link for the people with slower connections speeds please) I'll get things started... I'm running Ubuntu12.04(2D) I don't think its very new but I installed the wikipedia lens which allows searchi (Hardware)