It says there are more Catholics in the world than there are Moslems.
And that India and China have more Christians than are generally admitted to by the authorities.
And that there is danger of sectarian strife between conservative Catholics and Pentecostals in South America, but less so in the rest of the Southern Hemisphere.
America, in this account, maintains its Christianity in no small part via Hispanic immigration of Catholics and Pentecostals.
I read somewhere that the majority of Hispanic Americans are protestants. The independent / loosely attached charismatic churches seem to be the fastest growing demographic here in the States. Like home schooling, there's a lot of stuff going on "under the radar" of the cultural elites -- a lot of encouraging stuff!