From WebOS Internals
ScummVM - Version: 1.0.0
ScummVM is a collection of game engine recreations. Originally designed to play LucasArts adventure games that use the SCUMM system (the VM in the name stands for virtual machine), it now also supports a variety of non-SCUMM games by companies like Revolution Software and Adventure Soft.
ScummVM is a reimplementation of the part of the software used to interpret the scripting languages such games used to describe the game world rather than emulating the hardware the games ran on; as such, ScummVM allows the games it supports to be played on platforms other than those for which they were originally released.
ScummVM was originally written by Ludvig Strigeus.
Wikipedia entry on scummVM
scummVM project homepage
Released under the terms of the GNU General Public License, ScummVM is free software.
Assuming that you have installed the Scratchbox2 cross compiling environment as described in WebOS Internals PDK then all you will have to do is go to that install and: