Got me a 3gs here in India at an insane price of 46,000 rs. (1re=48$ do the math)
and I should say it is def. worth it.
I mean for the number of applications and games on this baby.It is a sure go.
1st off the differences I personally noticed from the 3g
1. Battery life-slightly improved
2.Interface-very very responsive,I have almost 200 apps on my iphone and I have 0 lag moving through the homescreen(s)
3.Apps-load very fast.Almost 4 times faster.I tried starting Sims3 on both 3g and 3gs at the same time and 3gs loaded 2 minutes before the 3g
4.I did not notice much graphics change between openGL graphics in any game yet.They both look the same.Doom Resurrection used to be very laggy on the 3g.on the 3gs there is no lag at all.
5.Everything else is pretty much the same.The device does get heated up from time to time
So closing comment,iphone is not about the phone or the frigging' copy and paste features.
It is about the tons and tons of apps and games available on it,it has also replaced my NDS and PSP.
(pssssttttttt 5th cell , scribblenauts-iphone *hint**hint* ;) )