Apple added push notifications to iOS in June 2009 when iOS 3.0 was introduced. It does an excellent job of allowing applications to send you notifications while preserving battery life. It does however have a few shortcomings which will likely be improved upon in future Apple releases. Today, you can improve on notifications with Boxcar.
Blackberry users give a few reasons why their devices are superior to an iPhone. One of those is the email notification on the device. Apple’s push email is helpful and it will show a number of messages on the mail icon. It doesn’t however work for all email services or provide as good a visual or audible cue.
An example of a service that doesn’t provide good notification for me is email from our company Exchange Server 2003. While newer versions of Exchange provide good support with the iPhone, 2003 has its limits. I am able to use a Virtual Private Network (VPN) to gain access to the email. This however requires you to login and check even if there is nothing there that you care about. Boxcar can help.
Tom's Tech Tips 