Gmail and contacts syncing works great on iPhone. It uses Exchange to do all of the syncing, and it's quite fast. I had to get my phone exchanged, and all of my

Gmail and contacts syncing works great on iPhone. It uses Exchange to do all of the syncing, and it's quite fast. I had to get my phone exchanged, and all of my contacts and emails were synched in a few minutes after I got the new phone. Not sure what the other comments are talking about, you can use multiple Exchange accounts on iOS.