Now, here's another gotcha. You can't just export contacts from secondary groups on your iPhone. You can export individual vCards, but you can't do something like a tab-delimited data dump.

How to Export iPhone Contacts to Gmail. If you have multiple contact lists, you may find yourself struggling to find the contact information for a particular person -- is it on your iPhone or in ...

How to Export Gmail Contacts to an iPhone with a vCard. The vCard file format for address book contact details is the industry-standard contact file format and almost all Web-based email services ...

1. Be sure to have a backup of any contacts (export a vCard or .csv file from your contact management program) you may have on your computer that you want to keep. 2. Plug your iPhone into your ...