According to one source, during the development of the Apple iPod, at least three concurrent models were developed prior to launch.
One model allowed both Flash or Hard Drive modules to be plugged in and swapped by the user.
The second model represents the current retail iPod and uses a built-in hard drive.
And the third model -- for which we have no details.
One model allowed both Flash or Hard Drive modules to be plugged in and swapped by the user.
The second model represents the current retail iPod and uses a built-in hard drive.
And the third model -- for which we have no details.