Outlook 2003 or 2007, Outlook Express, or Yahoo contacts. That's the only three that I know for sure. One poster said that iTunes imported his Windows Mail contacts (Vista version of Outlook Express), but I can't verify this for certain because I used Outlook 2007 to import mine.
See that is why i love Apple products. Ive had a macbook for awhile now and when i got my razr i was able to send all my contact info from the phone to the computer through bluetooth. So when i got my iPhone it automatically synced my contacts to my new phone. So i was a happy girl that day.
jesus christ....that is ridiculous. 15$ for about 10 seconds of "work".
That's like the 36$ activation fee they charged me, for ME to go home and activate the phone, myself. lol (which i will DEFINITELY be trying to get out of, through much hell-raising on the phone)