> Even though Mame version 0.36 supports large Roms (+1 MB), it is unlikely
> anything that large will play properly, if at all. The largest Roms I have seen
> working are Arkanoid 2 (307k), Rolling Thunder (324k), and World Cup 90 (374k).

hello
on may i've ipaq 4150 and tested some games on clean system - i've find some bigger size that work (once work, once not (over size limit you mentioned but never find more than 2MB) - but when start then work OK (but some of them slow)- im sure because i've leave them for future use, when buy my own pda):
aliens (1 761 k)
pang (1008 k)
ddragon2 (768 k)
cbasebal (711 k)
black tiger (668 k)
DDRAGONB (523 k)
fire hawk (518 k)
trojan (392 k)

and smaller roms which i've not found on your tested list:
ironhorse
the hustler
mikie
chplft
psychic 5
choplifter (i think it was bootleg or something)
city connection
flyboy
gaplus
goindol
lode runner 2,3,4
miss pacman
pacman
road fighter
super bagman
seawolf 1,2
vastar

PS. Sorry for my ugly language - i never learn this one.