So the Japanese version was released today (find the thread here) but Uchikoshi just mentioned this on his twitter.
http://www.twitter.com/uchikoshi/status/339619229621968896
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Why did they remove the Escape Rooms?
http://www.twitter.com/uchikoshi/status/339619229621968896
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Why did they remove the Escape Rooms?
Uchikoshi on why they cut the puzzle stuff:
理由は「パズルゲームはちょっと苦手なんだよねー」という方々にも、ぜひこの物語を知って頂きたかったからです
We cut the puzzle sections because we wanted people who weren't good at puzzle games to be able to enjoy the story as well.
Essentially, there were people saying "I suck at puzzle games but the story looks really interesting ='(" Hence the sound novel approach.
He also goes on to say that if newcomers feel like they want a little more, they should definitely grab the DS version with puzzles.
It's also worth noting that 999 iOS has a Flowchart, which is fucking awesome.