He is talking about a problem which is simply not there. Spam is not a big problem, (keep track of who you're giving your address to), but most importantly spam is not unique to email: give them (spammers) a channel to reach you and they will.
Besides, WHAT IS an email? How exactly is it different from SMS if I trip&forward it to my cell? Email is not even limited to a protocol or any specific software. Any kind of technical definition of "email" that one can come up with will probably evolve around SMTP, i.e. server-side.
The article is unclear on what "trump" is supposed to mean, and in what context.
Does twitter trump E-mail for persistent storage of long messages? Does blogging trump E-mail for personal exchanges among a select group of friends? Does IRC trump E-mail for secure delivery?
Besides, WHAT IS an email? How exactly is it different from SMS if I trip&forward it to my cell? Email is not even limited to a protocol or any specific software. Any kind of technical definition of "email" that one can come up with will probably evolve around SMTP, i.e. server-side.