Polynesians in the Americas before the Spaniards?

From the Archaeological Institute of America's top ten for 2007:

Scholars have long assumed the Spaniards first introduced chickens to the New World along with horses, pigs, and cattle. But now radiocarbon dating and DNA analysis of a chicken bone excavated from a site in Chile suggest Polynesians in oceangoing canoes brought chickens to the west coast of South America well before Europe's "Age of Discovery."

There's also a story about historical cuneiform corroboration of a lower-ranked name found in the Bible.