Source: http://lifehacker.com/5604200/google-adds-mobile-search-history-link-for-easy-search-recalls
Want to pull up that link you found at home while you're away from home? If you've enabled Google's Search History feature, you can now pull it up from the Google home page on your iPhone or Android browser.
Search History has long been a feature on Google's standard desktop version, but they've revamped it for its mobile launch. When you hit the History link at the bottom of Google's mobile page, you'll see searches you've made and links you clicked on, with tiny icons to distinguish your laptop/desktop activity from your phone searches. There's also, in Google fashion, a "star" you can add to items you'd like to mark for fast recall later.
Have you found Search History to be helpful on your desktop or mobile, or is the trade-off in information gathering a bit too heavy for your tastes?