"Google shares our idea that login pages should be a simple thing, not a frustrating experience" - the company announced on its site after Google took them.
For the logging function to work properly in this system, it is needed page which supports SlickLogin page data entry, as well as smart phone. The pages on which it is enabled, through the speakers it will play sound people can not hear, but it can be registered by a special application in the smart phone. The mobile device will then send an audible response, the user will log in to the site you want to use without entering any passwords or other information.
It is likely that in the near future Google will allow the use of this technology for their services, but it will probably be an alternative, but not the main mode of entry.