Update: this is based on my jailbroken 1.1.2 iPod Touch. I'll be upgrading to 1.1.4 at some point shortly and will update the instructions accordingly.
Gmail offers IMAP, which in my opinion, is a far better way of accessing your email than the default POP3 setup that is automatically configured by the iPod Touch/iPhone's Mail application. In order to ensure that the way email is handled on your Touch matches the same behavior through the webmail interface, you need to make the following configuration changes.
