Jesper on [two of the main problems][link] with current implementations of, and discussions surrounding, email clients.
From [Brent Simmons email-init mailing list][brent].
[link]: http://lists.ranchero.com/pipermail/email-init-ranchero.com/2010-January/000034.html “Shoehorns and fossils”
[brent]: http://inessential.com/2010/01/16/email_init “Brent Simmons’ blog post, announcing the list”