While the spirit of Elwyn Jenkins, "Email, Google, Microsoft and the Lack of Diversity" is commendable, the piece is chock full of bad argumentation. I'll probably do a careful analysis, but statements like:
The problem with email is that every email client works much the same way regardless of who constructed it...
are just silly. Is there any non-Microsoft e-mail client that 's responsible for spreading viruses? Heck, even newer versions of Outlook (from Microsoft itself) have script execution (the main virus transmission mechanism) turned off by default.