Should I upgrade to the new iPhone? Are you going to?

I just don’t know if the extra $10 a month is worth it. I also would like a 16 or 32mb one, and I like that they are so much cheaper to start with. Do you think they will ever have a 32mb? Should I wait or just get the new 16 or just keep my original? I think the 3g would be nice and the gps would be good for my work to find job sites and new customers homes, but I just don’t know. What do you think?