Don't we already have push email? it's just a setting you enable or disable.
No.....the setting that youre talking about just enables push "if you have it" Otherwise it will just fetch according to the settings you choose ie: 15min etc..... In other words, in my gmail account it will not "push" to my iPhone(instantly) it will only fetch according to the settings because gmail does not offer push. On my bb device my gmail IS pushed because it goes through the BIS. I do hope that push will be offered with the next OS... this would be great!!
Yes, you can set up Gmail as a push/exchange account, but that doesn't work out for those who have an exchange account and want their Gmail pushed as well. The iPhone only supports 1 exchange account.