Should be good
The old version ran in the Opera web browser that you had to pay for, and didn't support full-screen video, only a really kludgy hack with zooming. Opera became a free download a couple of months ago, but iPlayer mysteriously broke with an accompanying Flash update, and it's been displaying a crappy message saying "we might fix this sometime" ever since. This new one will presumably work along the same lines as the Nintendo Channel, a stand-alone entity with proper full-screen video. That is, if Auntie doesn't decide to can it in the next week like most other good stuff.