OT: Ipods, Itouch and various crap

My hubby surprised me with an ipod itouch tonight as a late Christmas present. So, before I sell my Ipod Nano is there anything I should be warned about? I love my Nano and use it
for long trips and the gym. Is the Itouch a waste of money? Opinions.. please?

for long trips and the gym. Is the Itouch a waste of money? Opinions.. please?
