Windows Mobile email has the option to check email on a minute schedule. I'd like to see this enhanced a bit where you can configure it to check email at a specified time or time range, and alarm you if an email was sent urgent.
For example, wouldn't it be cool to wake up and read email first thing in the morning? Or, for those who need to monitor servers and services who use something like MOM - MOM could send you an Urgent notification with verbose information (email) of the error and you can be alerted. Much better than wearing a simple pager and then having to VPN to figure out what is going on.