GrowlNotifier will send to your Mac the notifications that arrive on your iPhone, and you will be able to see them with the Growl application that you surely have installed because it is essential on Mac. This way you will not get any warning when you are at home working with your computer.
You just have to enter in the Settings of your iPhone, in the section for the application, the data that you will find in the Growl settings on your Mac, in the Network tab.
This great application is developed by a Spaniard.
You can download it free en Cydia.
You will find it in the BigBoss repo.
You need to have done the jailbreak.
UPDATE: There is also Growl for windows.
To your Mac and your WINDOWS. You could put the complete news !!!
I did not know that there was growl for windows, thank God I do not have to suffer windows
Only works with firmware> = 5.0
I do not know if you can publish a link but for those who want windows here http://www.growlforwindows.com/gfw/apps.aspx