It’s true I recently got the Apple iPad to use as another communication and connection device when away from the office or home. While I’m still learning the different apps I’ll want to complete the different tasks I do, obviously one of the main things I want to easily access is my contacts and calendar. I went through and added my account on the ipad using the GMail button as we use GApps. It loaded email just fine but my calendar and contacts did not work. After some further googleing and searching I found and did the following which allowed me to properly do a Google Apps sync on my iPad (instructions i found said Apple device so I assume this will work as well for iphones and touches though I only did on ipad). This is all found on Google’s site on a couple different pages but I want to make sure it was easily found the next time I needed it.
All instructions found on Google’s Support site:
Mail, Calendar, & Contacts:
Set Up Your Apple Device for Google Sync
If your business, school, or organization uses Google Apps, your administrator will first need to enable Google Sync before you can take advantage of this feature.
1. Open the Settings application on your device’s home screen.
2. Open Mail, Contacts, Calendars.
3. Tap Add Account….
4. Select Microsoft Exchange. Yes, choose this even if you are not using Exchange

Enter Account Info
5. In the Email field, enter your full Google Account email address. If you use an @googlemail.com address, you may see an “Unable to verify certificate” warning when you proceed to the next step.
6. Leave the Domain field blank.
7. Enter your full Google Account email address as the Username.
8. Enter your Google Account password as the Password.
9. Tap Next at the top of your screen.
9a. Choose Cancel if the Unable to Verify Certificate dialog appears.
10. When the new Server field appears, enter m.google.com.
11. Press Next at the top of your screen again.

12. Select the Google services (Mail, Calendar, and Contacts) you want to sync.
13. Unless you want to delete all the existing Contacts and Calendars on your phone, select the Keep on my iPhone option when prompted. This will also allow you to keep syncing with your computer via iTunes.
If you want to sync only the My Contacts group, you must choose to Delete Existing Contacts during the Google Sync install when prompted. If you choose to keep existing contacts, it will sync the contents of the “All Contacts” group instead. If there are no contacts on your phone, the latter will happen — the contents of your All Contacts group will be synced.

You’ve set up Google Sync! Synchronization will begin automatically if you have Push enabled on your device. You can also open the Mail, Calendar or Contacts app and wait a few seconds to start a sync.
Choosing Which Calendars to Sync
Open the Safari browser on your phone and go to http://m.google.com
Click on Google Apps user? at the bottom of the screen.
Enter your domain name (e.g., YourDomain.com).
Click the Sync icon in your domain area (this section has a green background).
Sign in if required.
Select your device to configure Calendars.