Spotted this interesting interactive detective E-book at Pocketgaming.de. It is free, easy and nice to read and play.

Storyline is this:
Your name is Jim Novak and you're a private investigator. You happened to fall into a trap that you warn your clients against -- you fell for a beautiful gal with a taste for money. You had some good times, but when the cash ran out, so did she. As a goodbye present she stole what little loot you had left, your car and whatever dignity you had remaining.

See screenshots from my iPAQ 6818.

Download free here
http://inebooks.com/NewdemoDames.htm