re 1: I guess its more about "looking amazing", not about usability. I looked at the clock and forgot to look at the date (had to re-open the tab to see when the event was). Looks amazing, though.
re 2: I think that's intentional, because you can drag-and-drop all items on the page. Just drag the title from behind the QR to an empty place on the page.
re 3: Dunno. My arm seems to be a bit slow to actually move many balls simulateously with sufficient FPS.
* The android holding the QR code covers up the time. I think the designer has a larger monitor than me. :-)
* The balls bouncing around sometimes interact with each other and sometimes don't. That's a nice hack to make it 2.5-D.
* The balls that don't move still flicker when the number changes. Fixing that would make it slicker.
Overall, a great concept. :-)