"Recently, Gmail added IMAP support, giving the powerhouse email
host the ability to interact better with third-party clients. And
Google, being the friendly neighborhood do-gooder that it is,
provided instructions on how to use IMAP with a variety of
third-party clients. However, it forgot one popular client: KMail,
the email portion of the KDE Kontact personal information
management suite. Google also neglected to mention that several of
its other services, such as Google Calendar and Google Reader, can
work well with Kontact. Here's how you can integrate them..."