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I think the dev mentioned in the post where he announced the Media Server that there's a Mac version in development as well, it'll just take some time. Until then, if you use the Generic Remote functionality built-in to Touchpad Pro already, it works fantastically with Front Row (great for PPC Leopard users who missed out on the remotes like myself). Not as useful if you're looking for a way to control your iTunes while working, but if you just want some way to play music, TV, or movies from across the room, it's great.
 
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