After much trial and error, I finally figured out which columns must be included to import the unit directory from the new LDS website into Google contacts. This seems to work for Gmail and Google apps contacts. Just use the following column headers, instead of the default column headers you receive when using "Export Households" feature. Replace the first row of the .CSV file with the following:
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Family Name,Name,Phone 1 - Value,E-mail 1 - Value,Address 1 - Formatted,HeadofHouseName,HeadofHousePhone,HeadofHouseEmail,SpouseName,SpousePhone,SpouseEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,ChildName,ChildPhone,ChildEmail,Given Name,Additional Name,E-mail 1 - Type,Address 1 - Type,Phone 1 - Type
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If in doubt, copy/paste the above list into Notepad, or other text editor, and save as CSV. Then open this new file and your ward list in Excel and copy/paste the new headers over the first row of your ward directory CSV. Save and import to Google. You may want to delete a lot of the ChildName, ChildPhone, ChildEmail columns to cut down on extra detail showing up in the contact details. Most of the other columns, however, even if blank, are required and shouldn't be deleted.