I must admit, I'd thought that the appearance of an iPlayer icon in the apps section would launch the current iPlayer 'big screen' interface and use the IP version over the modem. This would mean a significantly expanded selection compared to what's on the DVB-C 'on-demand' version.
But congratulations BBC. You've successfully rode a wave of positive feeling from consumers and manufacturers with iPlayer, justifiably making it a part of the TV-watching landscape. Now you're trying to snatch defeat from the jaws of victory - good effort!