This tweak will help login in AppStore easily.
"Accounts" button is added at Update section in AppStore. You can select a account want to login among multiple accounts with different country. Password may be prompted when expired session.
This version is beta has some bugs. When purchased list not showed, normally logout/login account.
When iTunes app launched background, and has problem, normally logout/login account with AppStore or Preferences app.
In iPad, accounts picker will display abnormally, but it works.
I will support for iPad, in future.
Bug reporting @typ0s2d10 on twitter
No options to configure, no icons added to the home screen.
See larger Screenshots below