Nexus One Enterprise?

SAN FRANCISCO — Google is expected to step into the mobile arena Tuesday with its own Nexus One smartphone in a direct challenge to Apple’s heavyweight iPhone handsets. Google has seized the spotlight in a week when the technology world’s attention would typically turn to a premier Consumer Electronics Show that officially begins Thursday in Las Vegas. “Everybody seems to think it is a Google-supplied phone,” Gartner analyst Ken Dulaney said on the eve of what the Internet giant has dubbed an “Android press event” at its Mountain View, California, headquarters.