The TiVo app for iOS is excellent & the ability to directly control your box, really adds a whole new element to the standard TV Guide apps. I'm looking forward to Sky's take on this as long as they don't leave it too long, which I don't think they will given their forward thinking approach when it comes to smart phones & tablets.
The snowflake UI you linked to is certainly different and graphically very attractive but i'm not sure how usable it would prove to be over prolonged periods. When you say that NDS doesn't work on the old Thompson boxes, are you saying all more recent Sky+HD boxes are capable of running that snowflake UI? It seems like it's going to be very resource intensive.
