No Email
One thing I would really love in an email client is a strong separation between reading and writing email. During productive hours when I'm sitting at my desk, I would really like to be able to 1) open GMail, 2) read old email 3) Write new email.<p>I absolutely do not want the ability to read new email during that time. In fact, I would really like to set up GMail so email only arrives on a fixed schedule, say 2-4 times a day.