Heh, I finished the DS version a few weeks ago. Overall I liked it but after hearing it was one of the best adventures ever made, it didn't really live up to that. I got confused by all the secondary characters you meet and trying to understand their roles, and some of the puzzles solutions were just obtuse.
I have to say, I'm very encouraged by these makers of classic adventure games using DD stores to repackage them for new audiences and systems. Revolution, Cyan, Lucasarts, Sierra. Now if only they could make new games...