http://badmintonengland.co.uk/show_...3§ionTitle=News&year=&month=#.UXUhjfXHCyE I think this is good news - in fact about time too !
http://badmintonengland.co.uk/show_news.asp?itemid=5356&itemTitle=CHALLENGING+ONCE%2C+TWICE%85§ion=13§ionTitle=News&year=&month=#.UYu9mvV2Gf8 More details - seems ok to me
What will be interesting is if these slow mo replays will be shown in a big screen. That is what will add to the entertainment and drama for the crowd. But this is being implemented faster than I thought, though truthfully ultra slo mo cameras isn't nearly as high tech as HawkEye so the set up time and effort needed to implement is not as complicated.
When Sky broadcast the All England they replay most line calls - but as they only had a few cameras they were not always conclusive (the player sometimes in the way, or the camera too far away) but it was still a good check so with a few extra camears this should work. I agree this should be shown on the big screen to add excitement - and also to stop accusations/ the player arguing. Should also use American Football system i.e. should only over turn if conclusive - so if camera cannot see (due to player in the way/ distance) you don't overturn.