I still have Quicktime 7 in my dock because I use it for quick video editing and in general, I prefer it over Quicktime X any day of the week. Scrolling is more accurate and there are little annoying tweaks about X like the video stops playback if I scroll or it doesn't automatically play when I go into fullscreen. I haven't heard of any major updates to QTX since I got Snow Leopard. Does anyone know if there are plans in the works?