I like the new Instant Search but I don't think I'll use it much. All my searches are conducted from search bars in Safari or Chrome where I just need to tap or

I like the new Instant Search but I don't think I'll use it much. All my searches are conducted from search bars in Safari or Chrome where I just need to tap or tab to the bar and type. One thing that has changed my search habits recently though is the Safari 5 extension that lets you do mouseover searches where you highlight some text then a little window pops up with some search results and the start of the wikipedia page. So I can look something up without even typing or leaving the page/window. I take it this too has been done before? It's really 'game-changing' as far as my UX and interaction with search/ads goes.