I have an iPhone so this was done without the hack. And luckily I did back up both my Mac Address Book and Google contacts.

After syncing I went to my Google Contacts and all my contacts appeared to be all missing. But the number of contacts said I had over 200. I composed a new message and started typing contact names in and they all appeared in auto fill. Huh!?

Mystery solved and I'm extremely disappointed!
All my Address Book contacts that I labeled as 'Company" and having no name in the "First" or "Last" name field appeared blank in Google Contacts. And because the Name field is blank they all sort from the top. Only after scrolling down (past the company only fields) did my contact names start to appear in the list.

COME ON! This is Apple and Google here not some third party sync app created by a first time developer! WTF?

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I have noticed other oddities with the Google Contacts - Address Book sync. Middle names in Address book are tough for Google Contacts to handle. If you have a first name with spaces in it, such as Mary Ann, that can cause problems with Google Contacts as well. Most of these problems are mentioned in Google's FAQ, but still...

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After enabling GMail sync in Address Book the addresses synced fine. I had deleted all contacts first. Afterwards I kept getting errors on my desktop that Contact syncing failed because another computer was accessing the sync. I turned off GMail sync in Address Book and the error messages went away.

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