Ben 304, a creator this particular lair and its reader seem to be incredibly fond of, has been a busy little AGS developer and -a mere 40 days since the excellent <3- went on and released the demo of his latest project: City. You can freely download it here and marvel at its excellent graphics, rich world, subtle political comments, weird cyber-gothic stabs at poetry, brilliant music, witty dialog, interesting characters and elegant point-and-click interface. Oh, and if you simply have to know, this promising piece of work also features the talents of captain Nemo and egalotron. And it's set in some sort of almost dystopian future.
On a totally unrelated note, demo versions of fully functioning cities (metropolises even) might not be the best idea ever, but a demo version of Berlin definitely sounds intriguing.