I know the iPod flea isn't real yet, but the cult is so strong right now, I bet it would sell like mad. More and more people I know have the whole set of iPods - full-size, mini, and Shuffle. PodGear's new HouseParty speaker system was meant for the multi-iPod owner. It supports all the iPod sizes, including the shuffle. Most of the iPod speaker systems with docks will work with any audio player, but they don't look as nice if there isn't a cradle that fits your model perfectly. This is the first I've seen that has an adapter for the Shuffle so it can fit in the slot meant for its bigger siblings. You can charge your iPod while it's docked and there's a USB port for syncing so you don't have to remove it to manage your playlists on your PC.

The HouseParty will be available in September. There doesn't appear to be any US-based distribution, but some of the UK vendors will ship internationally.