I am interested in picking up an IPod in order to be able to test my apps on both the IPhone and IPod. I don't really care about the IPod for any other purpose, so I'd be willing to buy a used one.
But the question arises, does an old IPod lack any features or software upgradability that would limit the type of apps I could test on it? I know nothing about IPods and whether they have evolved their operating system with newer models.
Thanks for any information on this.