America's Changing Religious Landscape

How Religious is America? I came across this story via Ben Witherington's Blog that is worth a quick read. This is the culture we live in and what people are pursuing spiritually. Here is one noteable observation by Ben:

"More than a quarter of all Americans have left the faith of their childhood for either another religion, or no religion at all. If you count shifts between one Protestant Church and another over 44% of all Americans have changed faiths just in the last ten years or so. What this reflects is the erosion of brand name/denomination loyalties."

For more on this see Ben Witherington's Post and also the original NY Times article.

Any thoughts on what implications this has for Christianity in 2008?