Gmail begins rolling out IMAP. IMAP means better support for other mail clients, including Outlook, Mac Mail, and the iPhone mail client. Specifically, it means you can switch between mail clients on a regular basis (Mac Mail, iPhone, Gmail's web interface) and always have an up-to-date view of your mail.

This comes just in time for the Mac OS X 10.5 Leopard release, which has a new version of Mac Mail that might have tempted me away from Gmail. Now it doesn't have to: With IMAP, I can use Mac Mail with Gmail and get the best of both worlds.

5thirtyone.com has extended set-up instructions for the iPhone, including steps for setting up the server-side Drafts and Sent Mail folders.