GTD Times post Is Your Smartphone Making You Less Productive? comments:

Quote Originally Posted by Mike
I think the greater loss of productivity for me is that I tend to read email messages on my phone, but wait to respond to most of them until I am back at my computer. That means I process them twice – if I remember to.
Quote Originally Posted by Max
Double processing of my mails + risk to forget to reply because they are marked as read even on my PC + I’m never fully present / always connected.
Quote Originally Posted by TesTeq
Mike & Max,

Does your smartphone force you to double process your mails???

I’ve got Nokia E71 with mail functionality that I have never configured. My smartphone is my tool – not my master. A person that really needs my immediate response can call me.
Do you use your smartphone to waste time on e-mail double processing?