Not trying to change your mind, but I personally have a strong distaste for being tied to one product because I use another (unrelated product). It's the reason why I've never bought a song or movie on iTunes. I was where you are a while back with Google products, but email is just email. I don't want my phone purchases to be influenced by what email provider I use; that's just silly. I'm currently using Outlook.com and couldn't be happier with it.