I had a 3g and upgraded to the i-4. Registered the new phone on the same old id (but changed the email and the password on my itunes with a new credit card) and synced everything to the last sync (of my previous phone). Everything works great except when I want to update the apps on iphone 4 that were purchased when I had the old phone, - It shows the old email id and asks me for a password. - I enter the old password and it takes me to my new email id and asks for new password - THen gives this message: Verification required: Before you can make purchases, you must tap continue to sign in, then verify your payment info.- I verify the payment info and it goes to updates again and back to SQUARE ONE !!!!!! Does not update !!!! Can anyone help here??? BTW I can purchase new apps easily.. I guess you already know that..