Multiple calendars from my GMail account?

I was struggling a bit with this myself yesterday as I was trying to set up multiple Gmail calendars to my new iPad.

Two things that resolved my issues

1) in m.google.com/sync remember to change the language to English so that you can select the device you want to modify, and select the calendars you want to sync with your iPad.

2) When setting up a Gmail mail account to your iPad, use the option Gmail in the settings, but select only Mail/Notes but NOT Calendar.

After setting up your Gmail Mail, then create a separate account for your Gmail Calendar using the Microsoft Exchange setting (instead of Gmail). Leave the Domain section empty and for Server set m.google.com, and select only the Calendar and Contacts option.

Hopefully that will solve your problems.

I have the same problem.
Everything works ok on my iPhone 4 and I can see mobileme & gmail calendars but on my iPad I can only see the mobileme entries.

The calendar looks like its syncing if I just choose google calendars as I get the swirly icon up by the wifi signal but it goes around and around and nothing appears.

I have also noticed the iPad crashes and hangs when I choose the calendar app or the settings

My gmail exchange shows multiple calendars on 4.2 ok.

Try opening you safari browser on iPad and go to m.google.com/calendar and sign in.
Then click on 'settings'

Check that all of your gmail calendars are selected.

If this doesn't work, when you open iCal and select 'Calendars' from the menu bar, do you have all of your gmail calendars selected?

I am doing this now with 4 calendars from Google, the default and 3 custom ones. This is what did it for me; http://www.ideaexcursion.com/2009/06/17/howto-sync-google-calendar-on-iphone-os- 3-0/

I know it says OS3.0 but this was the only way I could do it as I am using exchange with my corporate email and Ipad only allows one exchange account, works great!

From your iPad, go to

m.google.com/sync

From there, check that your calendars for each device are checked to sync. I hope that this should fix it.

If this doesn't fix it, did you have multiple calendars working on your iPad before the upgrade to ios4.2?

I got tired of playing with various settings on both my iPad and my iPhone 4 in order to get all my Google calendars to accurately show up, so I decided to try the CalenGoo app. It's brilliant. Ultra-simple. Very nice display options. And it simply works on both my iPad and my iPhone 4. Yes, it costs a bit, but it's been worth every penny.