Google Earth has actually been released for the Nexus One phone. Which kind of makes sense since the Nexus is Google's flagship device that sports a 1gHz processor. I can well imagine that Google Earth can be quite resource intensive.
According to the team, "Ever since we got our hands on one, we have been putting it through its paces, drawing complex scenes of 3D imagery, terrain, roads, and other layers, and Nexus One never misses a beat."
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