Android and Windows versions are in development:
http://blogs.adobe.com/jnack/2011/09/introducing-adobe-carousel.htmlI think they were thinking, it's working with iOS and OS X, let's release it and when it's ready for the others then we'll release those. That's not unreasonable - in fact, it's good (and I'm a Windows guy, so I'm waiting to be able to try this out).