Presumably, some typed form of unintelligible grunts will be next.

[sensaes]

"A US study finds younger internet users are losing interest in blogging and switching to shorter and more mobile forms of communication."

http://news.bbc.co.uk/1/hi/technology/8497427.stm

http://www.pewinternet.org/Reports/2010/Social-Media-and-Young-Adults.aspx