Just downloaded the Android version and it is working great!!! If I have any issues with the first version I will post some screenshots of any errors/issues.
Agreed that storing the information is not 100% necessary but I have both IOS and Android devices and having a single sign-on is useful. :)
But warning everyone to reconsider is a little strong. Thats like telling people to not use paypal because they store your bank account information.
Maybe in the next version they can give users the options to either store the information on the database or have it stored only on the app.
Downloading the iPhone version tonight to give it a shot, cant wait for the next version.