I hope I'm not reiterating old news here but I did a search first and didn't find this information. I decided to post it in case it might be of use to someone.
I have owned iPads for close to a year now and always had issues trying to figure out and then remember how to be able to access my Gmail contacts in Safari since they don't show up in either the Mail or Gmail apps. Usually, I just reached for the laptop but today I wanted to edit about 91 contacts that were imported and didn't want to be tied to the laptop. I had some trouble getting to the gmail.com desktop website on the iPad but finally got there. I saw the red Contacts link on the email page but my group names weren't displayed, although my labels were there.
A search in Google Help resulted in finding the advice to just go to www.google.com/contacts. Simple and effective! This brought up a very spiffy looking Contacts page with all my groups and labels available. Very nice! Now I can relax and edit the 91 contacts. It would be nice if you could access them directly in the app or more easily from the email page with the same nice display, but this is a great work-around and a very nice solution.