The Mail native app does not update my hotmail account, i mean, i can check Mails and send it, but when i log in to my account from pc they are still as unread, beside i cant see the contact groups that i have in my hotmail account to send a mail to a group of people, i was using mbox in my 3G and it works great, i dont want to pay for it again, how can i transfer the apps that i have in my3g to my iPhone4 without pay them again?