While the problem with Netflix (see link) was in fact a non-problem, there is indeed an issue with older Apps for the iPad One.
I'll go back over the issue. If you delete an account on an iPad One -- in order to say to give it or sell it -- to establish a new one, the new user should get the Apps from the iTunes Store since the App is linked to a particular account, even if it is free software.
I will continue to check with Apple and Amazon, and again to the chief execs. If anyone can offer any assistance to help solve the problem, please contact me.