ok go to the app you wan to delete and press it and hold for about 5 seconds then all your apps should start to jiggle and an x should apper over there top right corner just click the x on alll the apps you want to delete and they will be deleted that is the fastest way or you could plug your ipone into itunes and delete them from there.
just touch any spot on the touch screen and hold it then u will see all ur apps shaking a lttle with an "x" on the upper left hand corner of them. click on the "x" to delete. it works on the iTouch but i dont know if it works on iPhone