Rated 4 out of 5 stars

+ "Google Contacts" is better then ZINDUS!!
+ "Google Contacts" supporded more then one Googleaccount and more then one Adressbook!
+ There is also a backup function!
+ And you can use all sub adressbooks!

negative:
- no picture sync

This review is for a previous version of the add-on (0.6).