There is no question that the mobile experience will redefine how and when people engage with their spiritual and religious communities. Just as we have Web-only worshippers, we may soon be seeing mobile-only congregations which organize and disband on the fly. Nobody knows exactly where things will end up, but next-generation mobile apps could offer a powerful and extended community experience unlike anything that exists today outside of institutional walls and on the Internet.
In a world where it is getting harder and harder to bring people to church, mobile apps might lead the way in bringing church to the people.
I'll be thinking about this one for a while.