This is great and can only mean the other catch up apps will be coming soon. I can see the Apple TV being huge, but to me the only thing that's missing is some sort of live channel app that collects all live channels from these apps into one place (ie you download the iplayer app and you get BBC 1, 2, 3 etc live channels added to this list and so on) so you can easily switch between them.
Hopefully this will come with TVos 2!
Hopefully this will come with TVos 2!