Oh, it can totally be done, not saying that; I'm just saying that it'd be quite difficult, and dangerous, for an everyday user to use the email piping method (not to mention they'd have to have permissions to edit the email configuration files on their server to setup the email pipe).
In my post I was meerely stating that the only "all around" type would be a pop3 email reader which would parse emails (as thats all a "picture message" from a cellphone is)