"Twitter was inspired by SMS and we continue to embrace this simple but ubiquitous technology. In fact, Twitter's 140-character limit was designed specifically to allow for any tweet to be read in its entirety whether you're using a rudimentary mobile phone, or a more sophisticated Internet enabled device," Twitter wrote on its blog back in 2010.
But while Papworth admits that texting is past its prime, he believes it will still be very relevant for years to come. While a growing part of the population owns smartphones, which allow you to instant message, email, or connect to social networks, cellphone use without those features is growing at a very fast rate in emerging markets like India or Africa.
"Those handsets can do text messaging, but not everything can use data," he said. "Yes, the data is showing that it is starting to decline, but it's not going to go away. There is a lot of use for it alongside all the data services."