By ANTON TROIANOVSKI
Growth in the volume of text messaging is slowing sharply, just as new threats emerge to that lucrative source of wireless carrier profits. ...
The new messaging tools—answers to Research In Motion Ltd.'s popular BlackBerry Messenger—are a growing threat to a texting business that generated $25 billion in revenue in the U.S. and Canada last year.
Carriers, such as AT&T Inc. and Verizon Wireless, charge fees ranging from 20 cents per text to $20 a month for unlimited texting. The texting business has low costs and high margins. A dollar of texting revenue produces at least 80 cents of profit compared with about 35 cents of profit from $1 in wireless data or voice services, according to analysts at UBS.