And even with a functioning GPS, its satellites rely on celestial reference points as a final fundamental reference.

FORBES: Move up http://i.forbesimg.com t Move down

The Drift was a groundbreaking device for Helio -- its first to be sourced from Samsung, its first to integrate GPS, and its first slider that didn't look like death -- so we'd be kidding ourselves if we didn't say we were getting just a little emotional over the news that it's been pulled from Helio's site.

ENGADGET: The Helio Drift is dead, long live the Mysto? Mobile

Zambrano says Cemex plans to extend the GPS system to its ready-mix operations in large cities around the world.

FORBES: Cement meets the cyberworld