ML Preview and iCloud

So far I really like everything I see in ML except for one thing and I know this isn't an ML issue. You can now store pdf's out on iCloud using Preview. But as far as I can tell there is no way RIGHT NOW to access those pdf's on your IOS device. I was hoping there would be a new release to IOS iBooks that would allow reading iCloud pdf's but there hasn't been any release so far. Am I missing an app somewhere? This was one of the main ML and iCloud features I was hoping to use.