As a couple others have mentioned, it would be nice if we still have the option of the Edge service and the $20 pricing. Hawaii doesn't have 3G at all and it will probably be 15 years before anything other than Honolulu has 3G.
So, the 3G plan buys me absolutely nothing, except MAYBE once every couple years, IF I travel to the mainland, and to a place that has 3G?
Right now a 1st gen iPhone has a LOT of value for a lot of people because it does everything a 2nd gen does, except GPS. AND, it comes with a rate plan that saves you $120-$180 a year.
Remember, us 1st gen folks get exactly the same software that the 2nd gen guys get. That, in my opinion, is pretty darn cool. 1st gen iPhones are anything but outdated, in fact they are desirable for many.