Finally push notifications for gmail have come via a third party application which is now available on the App Store. The application will notify you when a new email has gone through to your gmail account through sounds/vibrate and text pop up alerts.
The application for now has been pulled off the app store due to the developers having problems with their server. It seems as if they didn’t even know their application got approved, however they are now working on getting their servers back in working shape to be re-released on the app store (no re-approval required).

