I hope you like Google Now, because it looks like this product is here to stay for a long time. As we speak, Chrome developers are working on bringing Popular Science's Innovation of the Year to the desktop, instead of keeping it trapped just on your phone or tablet. As it turns out, a "skeleton" framework is already in place for the search product to move in.
Google's not being shy about the existence of this product, but also isn't in a hurry to announce it, either:
Google confirmed that it's working on the project, but stopped short of committing to it.