Being able to 'snap' cards which show you a hint for the achievement is just 'blah' to me. I can't see myself using any of these trophy progress data stuff, or needed hints to be shown to me. I guess it's nicer that if you are stuck on a game, you don't have to start pulling up YouTube, finding a Let's Play, finding the right area of the game etc.
I'm more interested if we can pin our own bits there, like our previously captured videos from the Capture Gallery (if it still exists, not far into the video yet), so I can cross reference things fast without leaving the game I am in. That would stop me having to jump between game and Capture Gallery a lot.