The iMac G5 was released in 2004 when most iPods were still made with a white polycarbonate shell, and there's definitely a resemblance. The G5 arguably set the benchmark for the iMac, as although ...

That means there were three years between when Apple introduced the white plastic iMac G5 and the aluminum iMac in 2007 – a pretty quick turnaround time for a major redesign of a Mac.