I don't know how better to phrase this, so here are a few examples:

 * [Ubuntu Derivate with Rolling Release? Possible?](https://askubuntu.com/q/97861/24694)
 * [Kiosk that is able to transfer videos to a thumb drive](https://askubuntu.com/q/44199/24694)
 * [Is there any way a can buy on iTunes Store?](https://askubuntu.com/q/85584/24694)

Basically, these are questions for which there is no answer that will satisfy the requirements of the asker. So should we...

 1. Answer "No. There is no existing solution to do that. Have a nice day."
 2. Flag as `Not Constructive`.
 3. Leave the question be in hopes that future developments will allow a proper answer, or some guru will emerge with an unlikely perfect-match solution (eg "Yes, use *UbuntuDerivativeFoo* with *KioskMaker iTunes edition*.")