How do you transfer Yahoo contacts to iPhone?

If you have Microsoft Outlook, then backup all your contacts to that. The iphone will synch those contacts easily, and painlessly. Otherwise you will need to save the contacts to your PC via going to the store and having them save the contacts onto a USB drive in a pbb file. Then extract this with the application Content Manager.

Hi dont be like me and look for problems that don't exist. You can easily import your simcard contacts to your new iphone by simply going into settings.. mail,contacts,calendars, scroll down to import SIM contacts. so easy