Let me start by saying that I'm very impressed by this. Loving the application. I do however have an idea. Not sure if entirely possible but here we go.
Could this not be combined with the functionality of ObjectDock to provide the same dock both on the start screen and on the desktop, ideally even acting as a task switcher too. This would make the experience great- as I do use the Start Screen but am mainly in the desktop as I use ModernMix. Having the dock never leave would allow for an ever-present launcher, rather than me having to recreate the same shortcuts in taskbar pins.
This is also why I'd love to see if track running applications too- that way I could do away with the taskbar, and simply have one awesome little dock that shows running tasks and doesn't run away when the start screen pops in.
I'm sure this is possible already by simply running OD and skinning it to match, however the Launch8 dock doesn't current have means to track running tasks, and this method would require maintaining two docks.
Just a thought that'd make my life a little happier 