Finally, the iPhone doesn’t have to have an inferiority complex because of the lack of immediate notification of Gmail messages. That’s because GPush is now available on the Apple App Store for $0.99, letting you know immediately when you received an e-mail, rather than delivering you an e-mail at whatever interval you decided to pull it from the server. Does this make the iPhone just like a BlackBerry for Gmail users? We installed GPush on our iPhone 3GS, and here’s a mini review: