I have to admit that I only have the vaguest understanding the particulars in the post, but I know enough to see that an xda-developer member is describing how he got a DOS emulator called DOSBox running on his Vibrant. He’s playing games and everything (without sound). Looks as though you can pull it off as well. That is, if you can manage to get a Debian chroot running, disable scan codes, and complete a few other steps that are shrouded in mystery for me.
Now all we need is a Phantasmagoria ROM!