For example my HTC HD2 How to switch between apps? was closed and not migrated. I think it was a right choice:
Questions on Super User are expected to generally relate to computer software or computer hardware in some way, within the scope defined in the faq.
In the FAQ it says that smartphones do not use computer software or computer hardware and that is ok, but why this question was not migrated to another SE site?
What can I do to migrate it? (It does have a one very good comment.) Or should I forget about it and ask it again on another site?