okay soo i have a 2nd gen ipod touch,which is updated to the 3rd gen, and i want to update it to the 4 gen os. i heard that if u have the 2nd gen..u will not be able 2 get the multitasking and the wallpaper on your homescreen feature, but since i uptated to 3 gen..will i be able to get thos featuress???THanx Guyss!!!