iPod Nano speakers allow users to listen to music or podcasts without headphones, like a traditional stereo. Speaker systems range from small and inexpensive to full audiophile sound extravaganzas. Some double as alarm clocks or iPod chargers, and a new system from XtremeMac charges both an iPod and an iPhone (or two iPods) at the same time.iLounge News: XtremeMac returns... (September 18, 2008)