ICANN's loosening up and getting ready to roll out a whole new batch of .whatever generic top-level domains, but Google wanted more. Google was pushing for crazy, dotless domains like http://search
On Friday, ICANN New gTLD Program Committee decided to confirm and all-out ban on domains without dots in them, so http://whatever is off the table as a functional address option, for now. Ideally, http://search wouldn't have just been a shortcut to Google, but to a space where users could pick their own search engines (i.e. Google) but ICANN wasn't jazzed on the concept, citing technical and security concerns.
And with tons of new TLDs-like .search, .amazon
There's still a chance that ICANN could revisit the idea down the line and change its mind, but for now the decision is a solid "No." One paradigm shift at a time; it's going to be weird enough getting used to .cashbackbonus or whatever