For example I am interested in using hubiC: Online storage for all your files – hubiC.com or https://www.box.com/en-gb/home https://onedrive.live.com/?id=root&cid=F0B4F7BE1062139A
Currently working on Amazon Cloud Drive and Google Drive. Once both are finished I’ll start a new post for users to vote for the next storage provider to support.
Awesome! Do you have a newsletter list I can subscribe to so I will know about this post?
Just curious - how is the work on Amazon Cloud Drive coming? Inquiring minds. 
I received this from the Amazon Cloud Drive team yesterday:
Thank you for your interest in using the Amazon Drive developer tools. We consider a variety of factors as we evaluate each invite request, including the use case your application will support. While our goal is to offer a broad and compelling assortment of applications to Amazon Drive customers, we are currently unable to approve your request for access.
Unfortunately this came after about one month development on the ACD support. It is almost ready except for a permission issue that only they can fix.