Synchronicity is a useful and reliable application designed to edit your Gmail groups and contacts for your phone in an easy way.
If you synchronize your devices with GMail Address Book, you can consolidate your address book as a cloud data. You can create new groups and add new contacts. You can assign colors to groups depending on your mood.
Synchronicity supports Google Apps. You can import / export addressbook from other accounts.ie from [email protected] to [email protected]. If you synchronize your devices (iPhone / iPad / Android / Blackberry) with GMail address book, you can consolidate your address book as a cloud data.