The one feature I really miss since switching from Android back to iOS (don't worry Android fans, I'll likely be switching back with the next update like the disloyal mobile user I am) is the superior, info-rich notification feature, Google Now. I've been able to retain some of the satisfaction by bringing Google Now to my desktop using a Chrome browser extension...
New Tab Page is a handy, free Google Chrome extension offering the Android OS experience for desktop users, regardless of operating system: Google Search box, voice search, weather forecast, up to date news, app access, and a recently opened sites history is served every time a new tab is opened. It's a feature which seems a long time coming for desktop users*.
If you're worried about the extension cluttering the minimalist Google Search site experience, don't fret, the resulting upgraded search page retains all the simplicity and quick loading speed of the original, with just a few more tidbits of information, making it an ideal default page for new windows opened. And of course, you always have the option of turning New Tab Page off if you want to return back to the bare bones experience by simply switching it off via Chrome's Extension management.
*According to The Next Web, Google Now appears to be making its way as an official release to the company's home page.
(Images: New Tab Page; Gregory Han)