I would have preferred if they had somehow integrated/replaced the system tray functionality with that of the tiling interface... as my understanding the tiles

I would have preferred if they had somehow integrated/replaced the system tray functionality with that of the tiling interface... as my understanding the tiles can mimic most of this functionality, if not do a little more. I dare say most the concern I'm seeing about this so far is that they've simply not gone far enough... Unless the tiling interface is the primary mode of use, then most people simply won't use it and it'll be relegated to the list of features the OS has, that simply no one uses. Think "Windows SideShow". Of course, this all depends on what MS are planning on doing - and I think they've made yet another PR misstep (even if it's only to developers) in that they've simply not released enough information. I can't decide if they're teasing deliberately in an attempt to drum up interest (working, but I would argue that it's more worry than interest to their target demographic) or whether they actually don't have much more than this demo and that they don't know what their long term plans are (even more worrying?)