Push Gmail has been one feature a lot of handheld users out there have been craving for over the past couple of years. Of course, several third-party solutions appeared (such as the GPush iPhone app we were talking about a month or so ago), but it wasn’t something available for free, and, more importantly, it was restricted to iPhone users.
However, Google has finally decided to provide Gmail with push functionality, which can be very easily activated by any user, even the less tech-savvy ones. And here’s a quick guide to what you’ll have to do, according to the Official Gmail Blog. So, first of all, you should know that the task of setting up push Gmail can be done either by yourselves, or with the help of the Contacts and/or Calendar applications.
Now, Google does inform us that this functionality will only be enabled for the iPhone/iPod touch units running the latest OS versions, namely versions 3.0 or higher, so be sure to upgrade before trying to activate Push Gmail (we won’t detail the respective process here, because it’s very likely that most of you have carried out the updates already, given the exciting new features version 3.0 enables).
pdf here How To Enable Iphone Push Email