This is only available if you are self-hosting your blog. This is the only part of this blogging
How To... which will cost you money.
You will need the Prowl:Growl Client
from the App Store (£1.79). You will also need to register at http://prowl.weks.net to creat a Prowl username
and obtain an API Key.
You must have the WPTouch plugin installed. In WordPress administration go to Settings/WPTouch/Push Notification Options and enter your
Prowl API Key. Configure the iPhone App with your Prowl user name and you are ready to receive notifications that comments have
been posted.
Note that it's also possible to receive notifications about various system events on your PC or Mac