Good things come to those who... er... turn their blogs into surrogate corporate advertising! A while back I posted this and this. Gears have turned, and so forth, and as a happy result those fantastic folks at Perplex City have now graced me with the following email:
Hi Greg,Awesome! Free puzzly goodness! ... and yes, that IS the correct spelling of just deserts - don't get me started.
Thanks so much for your kind words about Perplex City. This Monday, we'll finally be sending you some puzzle cards as a token of our appreciation!
Best regards and happy puzzling,
Perplex City Customer Services
UPDATE: Also, if you're still not sure whether you want to play Perplex City, or just want to try out some of the cooler ARG stuff of the game on your schedule, not theirs, they've just added a puzzle-style walkthrough to bring you up to date, demonstrating some of the techniques you'll need to solve the larger puzzles of the plot. Completely free, rather short (about three or four solves needed to finish it) and not at all hard.