Google News is free and has zero ads. So what’s it worth to Google? About $100 million. That’s the figure Google (GOOG) vice president Marissa Mayer, who heads search products and user experience, threw out during a Tuesday.

Rivals including Sprint and Research In Motion want to fend off the Apple threat by enticing developers to create tools for their devices, too.

Officials at the company have been debating the merits of such a system, and now clues are leaking out that point to a possible launch -- perhaps as soon as two weeks from now, at Facebook's f8 developer conference.

Recently, the need for space has become immense. Files have become increasingly larger, there are more things to download and so on.