SOME QUESTIONS FOR THE LIST APP OFFICE

Just got a little curious today
  1. How many updates are we away from a direct message system?
  2. What is the maximum number of list items I can have? This one is about to get very real.
  3. If I post too many lists, will everything shut down? What if a list is too big?
  4. Are we talking video compatibility soon?
  5. I tried tagging @list in this title, but it doesn't work. This is also the question I ask most in life: Is it just me?