Yeah, I'll get all of my Lucasarts games out of the desk to re-play them on the plane. Since I got my hands on a WM5 device ScummVM [1] makes it also possible for me.
"ScummVM is a program which allows you to run certain classic graphical point-and-click adventure games, provided you already have their data files. The clever part about this: ScummVM just replaces the executables shipped with the game, allowing you to play them on systems for which they were never designed!"
The latest version 0.9.0a [2] fixes some issues in the previous version. And of course there is a Windows Mobile 5 ARM package for Windows Mobile 5.
Actually all of my favorite SCUMM games are supported:
Maniac Mansion
Zak McKracken and the Alien Mindbenders
Indiana Jones and the Last Crusade
Loom
The Secret of Monkey Island
Monkey Island 2: LeChuck's Revenge
Indiana Jones and the Fate of Atlantis
Day of the Tentacle
Sam & Max Hit the Road
Full Throttle
The Dig
The Curse of Monkey Island
Actually I just started searching in my archives. Somewhere I still have all the original 3,5" discs with these games copied on a CD. Yet I found only The Dig, Sam & Max, and Full Throttle.
[1] http://scummvm.sourceforge.net/
[2] http://scummvm.sourceforge.net/downloads.php