Get the "Synchronize with Google" option to show up in Mac OS X Address Book.

Thanks to this post in macosxhints forum, I could keep my Nexus One is sync with Google and MBP. Quoted below from the forum post.

a) If you don't have this file, copy the following into a text file and save it with the name com.apple.ipod.plist. Put the file in your Preferences directory inside your home directory.

{ Devices = { red-herring = { 'Family ID' = 10001; }; }; }

b) If you have the file and don't have an iPhone or iPod touch, you need to add some information to this file. I used Apple's plist editor to add the information, and that worked for me. This terminal command should work as well.

defaults write com.apple.iPod Devices -dict-add red-herring '{ "Family ID" = 10001; }'