Currently Being ModeratedMar 25, 2012 2:38 AM (in response to Henry_Moe)
I had a bit of this a little while ago, then it went away. I kept activating the iMac in iTunes, and eventually it shut up.
Try restarting the iPad, and if that doesn't work, back it up and do a Restore
To get Keynote on the iPad, in the interim go to the App Store on iPad, and check Purchases - keynote should show up there and you can download it.