Planet Of the dead Similarities

As you are probably aware, the Easter episode of Doctor Who is called Planet of the Dead. But why does it sound familiar? Well...

It sounds not unlike the title of these stories; Planet of the Daleks, Planet of the Spiders, Planet of Giants, Planet of Evil,Planet of Fire, The Unquiet Dead, Forest of the Dead, The Dead Planet (episode from The Daleks) and Planet of the Ood, thats just off the top of my head, theres probably more!

Forum rumours flying ATM says its probably about Gallifrey, wellRussell T Davies has almost rebooted all the Doctor Who universe forSteven Moffat, but to complete the cycle, Gallifrey has to return (well, at least some Time Lords), so its definatly a thought!