So you were an android user and just switched over to an iPhone. You have gmail and are annoyed that you are not getting instant(push) notifications for your mail? Or perhaps you hate iCloud, and want to sync your contacts on facebook, gmail, your computer, your phone, seamlessly?
Well I too felt your frustration but have found the answers: http://listentotristan.blogspot.com/2011/10/android-to-iphone-tips-google-vs-icloud.html
I was an iPhone user, went to Android and now I'm back. I spent a couple hours last night cleaning up my Mac address book so it would match my Google contacts. This is a day late, but the calendar and mail push is worth it alone. Mine is already set up and working great.
thanks, I don't have my phone yet (not until the 21st) but this is something I was worried about switching from Android.
I did this (unfortunately before I found this thread..it took a while to figure it out). But this worked great! Don't bother setting up your accounts under "GMAIL" do everything under "Microsoft Exchange."