iCloud Calendar Sharing

I'm getting into trouble with one macbook and 2 iPhone's (me and my friend). We have a shared appleID for the store, I use the same ID for iCloud and he has a seperate ID for his iCloud.

In iCal on the Mac we would like to see our family agenda, which should also be visible (and updated) on both our iPhones.

I assume we have to do something with shared agenda's and iCloud, but what and where exactly is not clear to me.

Anyone some idea's?

ps: the same story goes for contacts. We would like to have our family contacts on the Mac and both iPhones.

How can you change the email address to which calendar change updates are sent? Curently, they are sent to my Apple ID (hotmail account I'm in the process of ditching altogether) where I'd instead prefer they be sent to my @me address. I thought maybe using the Apple ID/primary email change on the Manage Account site would work OK but I'm apparently not allowed to set my @me account as my primary email/Apple ID.

Thanks Alex

Seems to be documented here:

http://support.apple.com/kb/PH2690

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