So I decided to try it out…
First I had trouble upgrading flash – Installing it was easy, but I found I still had a flash 9 install listed in my about:plugins page. Following the Flash – MozillaZine Knowledge Base page helped me solved this (it turns out I had a flash 9 file in my ~/.mozilla/plugins folder)
Then it was time to install iplayer. First it installed Adobe AIR, which was simple enough. Then the iplayer desktop app installed inside AIR – the security dialog for this was particularly unappealing as it did not have any knowledge of the publisher, let alone a secure signature or certificate to assure me it was really BCC content I was installing
After that it was plain sailing – Top Gear started downloading straight away, and was done within minutes.
It plays great, works fullscreen (though my laptop can’t manage full screen well, I probably need to look at setting up 3d acceleration which I didnt do when I installed it ~2 years ago as the drivers were rubbish), and the volume still goes to 11 like the iplayer.