However, it is free, powerful and beautiful. I wish the reviewer before me who gave it 1 star would have contacted the developer before posting the review, because it has the GCalendar view and the Google view as it has for several iterations. I'm using it on 1.7, and it works great!
After looking for an extension to customize my contacts EXACTLY the way I wanted, I realized the only exact approach would be my own, and this tool let me do it. And that's only the beginning. If you need data entered, displayed, edited, chartered, mapped, calculated, manipulated, searched, etc., this is the extension for you! The extension is free; support if you need it is reasonable!