which particular features do you want?
what does a phone even need except phone, txt and possible a camera anyway?
there are far better (and cheaper) devices that will give you all the extra functionality......ipod touch for example! has everything the iphone has except the telephone capabilities.....is it really worth paying that much extra just for the phone when (as stated) you could already get a decent phone for a lot cheaper
and don't give the usual "carrying two things" crap....if your pockets are really that small then get new trousers