Mobile Devs you can now have a single backend for your Android and iOS apps

Kind of strange title, to me. I don't know why anyone would ever create separate server-side backends for different mobile platforms. I guess this just means that this company is providing libraries for both Android and iOS? Are the other "easy mobile app backend" services focused strictly on one platform or the other?

Hype much? Why would an API ever be platform-specific?<p>EDIT: Has anybody ever actually used one of this cloud-hosted mobile backend services? Is it really any better than writing/hosting my own backend? Can it move beyond the trivial store-and-retrieve case?