If you logged out of the application, it should unregister. It should only re-register when you log back in (which would require communication with Twitter's servers, which would update the APNS token to point to the correct account). This is how I handle APNS tokens in my Pushover app.
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If you logged out of the application, it should unregister. It should only re-register when you log back in (which would require communication with Twitter's servers, which would update the APNS token to point to the correct account). This is how I handle APNS tokens in my Pushover app.
I think you are missing the point. It is a multi-user app. The first user didn't logout when the second login, both were logged in at the same time.
The _real_ solution is to wait for server acknowledge to delete the account from the phone.