Thanks and congrats to @dev @mkz @to_soham @lord
  1. First, you'll have to install the update.
  2. In the comments section, now there is a second option: "make a suggestion." The suggestion will format exactly like a list item - options for secondary text, photos, location if you want it, the whole deal. If the list maker likes it...
  3. Add suggestions to your favorite lists
    Suggested by @LevNovak
  4. Fix dat bug
    Suggested by @ruddybuddy
  5. Want to control whom can add suggestion to your list. Go to your profile. Click the settings button on top right and scroll down to see this option.
    122591 4c2bb9fb 6f59 4110 a7b4 bbac772a5756
    Suggested by @x
  6. The list maker has the option to double-tap a suggestion and add it to his or her list! (With attribution, of course.)
  7. Voila: collaborative lists! Please be the first to play with it and tell us what you think!