I have a 2012 mac air 13" with OS 10.8.2. It does not offer me the opportunity to upgrade to 10.8.3.
I bought a new 2013 mac air 13" with 10.8.3 installed.
When I airdrop Keynote or Numbers or Pages to the new Mac, I get an error that says Keynote cannot be opened becuase of a problem. Check with the developer to make sure Keynote works with this
Remove Keynote using Appcleaner, then loginto the App Store and reinstall Keynote.
Retrieving data ...