Mail push notifications

Yahoo and Gmail both work for me on this topic.

 

All your mail accounts can get push notifications. They're not the kind that pop out into the middle of your screen like a text message, but they make a little number on the top left corner of the Mail icon on you home screen. You can change that setting in Settings>Mail, Contacts, Calendar then tap on fetch new data and make sure it is set to Push. I hope thats what your looking for. Otherwise, you'll have to wait until IOS5 with the Android style drop down menu with you notifications. That will will have your Emails