I have email setup on my n900 and I have it set to update to any connection and at 5 minute intervals but it does not work 100%. I seem to run into issues when switching to a new connection. Also when I play music via stereo speakers or plug my n900 into an external device to listen to music I get no ring notification of incoming e-mail only vibration. If anyone can give me some advice I would appreciate it. Long live n900.

Join the club. I created a thread earlier in the week with the same issues. Maybe something in it will help you? http://talk.maemo.org/showthread.php?t=44382