From the article: > Plus, MessageMe actually doesn’t rely on Facebook for most of its growth. It instead uses the address book, which is the same method that o

From the article: > Plus, MessageMe actually doesn’t rely on Facebook for most of its growth. It instead uses the address book, which is the same method that other big messaging apps like WhatsApp and Line have used. Facebook integration looks like an important feature that the app had, but not a completely critical one.