I dont hang around this forum to praise the BB and bash S60... I really do like both, but if the Eseries is gonna make serious inroads in the business world, it needs to be able to handle mail as easily as a BB. 60-70% of what I do on my handheld is mail related, about 20-25% is making calls.
When I was backpacking last week, I left my BB in the car and carried my E51. When we hit the tops of ridges, we often found service and I would check my mail, but quickly got frustrated at the mail handling on the E51. I like to use my inbox as a "to do" list and quickly move resolved issue to other folders. By the time I got to my car and BB 5 days later, I had to touch all the mail I had already read.
I also like the way when my BB loses service (we were really in the boonies) as soon as we regained service, no matter how short a period of time, my BB would immediately begin to get mail. As a mail device, you still cant beat it. If Nokia could improve this, I might be tempted to carry the E71 as my daily driver.