However it looks like not only will RIM be taking a hit thanks to iMessage, but according to multiple analysts, this could cost carriers all over the world the money they are currently making off text messages. According to one analyst, about two trillion text messages are being sent in the US each other, which roughly translates to about $2 billion worth of revenue annually.
Considering that text messages go through the same system used by voice calls, essentially carriers are just making use of an infrastructure that already exists, with a University of Waterloo professor, Srinivasan Keshav, claiming that the markup on text messages are as high as 4,090%.