Hi Mick Mac, I am in agreement with dulwichmum, using the iphone4 for a high volume of emails would be more time consuming. I have had my iphone4 for a few months now, and like dulwichmum I would not recommend it for general business use, and also until a few little improvements have been made to the user interface. I only decided to go for this particular phone because of the HD camera, film making applications and the battery life, as I need to be able to use it quickly whilst out on sets and locations and needed something I could rely on to do the tasks I need to do. What I have found to be an issue with this phone, especially in this weather is the touch screen so if you are out and about and wearing gloves it is near enough impossible to use the phone. Sometimes it will also drop signal whilst in the middle of a call, even with the casing that they have provided to amend the design flaw with the ariel, and the wifi functionality takes a long time to work if you really need to use it.