it would be nice if you would integrate the external Browser support like for Dropbox and Google Drive.
The problem is on iPhone 5s you can't access the edit fields and buttons from OneDrive Website.
But you can reproduce the effect also on other iPhones.
Start your CloudStorageDemo on IPhone, select OneDrive and click CONNECT. All seems to be fine.
But now switch from portrait to landscape mode and back. The website slides to the right side and on the top the CLOSE button is no more visible. There is noch chance to cancel the login.
That's why external browser support would be fine.