Here is a description how this works…http://store.adobe.com/store/en_us/popup/offer/touchapps.html
The only thing you have to do is to login to the Creative Cloud via the touch-apps itself so that backend kind of recognizes your AdobeID and brings it together with your subscription
Here is a very long thread about this….http://forums.adobe.com/message/4401561#4401561
Hope that answers your question.
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