I was a massive fan of the first game and was pleased to hear about this expansion the other day... Has anyone tried The Walking Dead on Surface? I played through the original on my iPhone... which leads me to my question about this, how does the expansion work? Do I have to have the first game installed already? I'm guessing that is the case meaning I have to play through on my iPhone again which would be a shame. Unless someone knows otherwise and it's an independent release?