That is true.
But now ArcadeMAME 106 (ID4 Mame) is compatible with Switchres

, I was working some days and get it

.
I get too that Mame double the pixels of games with vertical resolution under 384px (as option), so it will tell to switchres the doubled resolution of that games, and then some ATI cards that can't work with lower resolution (HD 2XXX, 3XXX ...), will work with this ArcadeMAME, switchres and magic resolutions.
I need to do testing, I hope to publish an alpha version in my blog soon
