Huh. Interesting. Here's my thoughts.
Before I begin, let me say that I know next to nothing about Law and Order, so this is Telltale's first game where I can't speak as a fan of the franchise. Maybe someone who loves L&O would have a better impression from this than me, maybe they'd have a worse one. I don't know.
-The cel-shaded graphics are nice. Telltale still has a way to go when it comes to realistic graphics. Jurassic Park looked good but not great. The cel-shaded look lets the game look realistic and cartoony at the same time. I wouldn't mind if they used that style for The Walking Dead and Fables (it'd make things look...comicky).
-Gameplay seems kind of like Phoenix Wright. Which I fucking love. This might even be a decent way for me to fill the void since Capcom seems to have given up on bringing AA to the States.
-Seven episodes? That's a lot. Unless these are shorter than your usual episode, that would make this Telltale's biggest game yet.
-Branching paths and multiple endings? If they deliver, this is actually getting kind of promising.
At the same time, though, I see some bad stuff.
-That "You don't have to be a gamer to play" remark. Given how BttF and JP were both ultimately disappointments because of how watered-down they were for the casual crowd, that's a BIG red flag. I guess that remark could apply to adventure games as a whole, though, since they emphasize intellectual challenges over action and don't have any complex controls. If I was trying to introduce someone who's never played a video game before (like an older person...who likes watching cop dramas...) to, say, Monkey Island, I might say the same thing. Nevertheless, that sentence is a huge cause for alarm.
-Releasing it for the iThing 4.0 G before the PC (and no mention of consoles at all). Call me biased, but I sort of feel as adventure game developers Telltale should give top priority to the system that's been the genre's home for so long. I get why Telltale's started putting as much as they can on the App Store, but I hope they don't start thinking of themselves as a full-on maker of iGames. I'd rather be associated with the system that gave us Myst and Half-Life than the one that gave us Angry Birds and Fart Button.