I'm sorry to hear this. A few other folks have reported similar issues on the other Touch App forums, so there is definitely an issue. I have escalated this to the product team and someone will post back here with an update asap.
Thank you very much for posting and letting us know.
I just sent you an email. Please feel free to respond to it.
I just purchased Photoshop Touch for my ipad and I am unable to sign into my Creative Cloud account. After clicking sign in I just get a blank white box. I hope there is a resolution soon.
Did you get it resolved?
I am having the same issue(help)