Give it time! They've only just been released in the US! To the best of my knowledge, NRU are ABU's only official distribution agent in the UK, and they historically have gotten new products about 6 weeks after ABU have released them, so I wouldn't expect to see them any earlier unless you are willing to pay obscene shipping costs.
Besides, they're built on the Cushies/SDK 2.0 frame, and they ARE available in the UK, if you want to try them in the meantime.