Ok cause im such a nice guy

i installed the original video drivers and set the intel software to use monitor and the LCD on the eee pc
This worked out great

you can start up the EEE PC and it will run on the external monitor perfectly

I did try out 1944 and that ran as smooth as silk and thats streaming over wifi for it aswell
I didn't try 1944 out on the external monitor sorry but i don't see any problem with that
I should remind u that altho the 900mhz celeron cpu is 900mhz on all the games that people have tested it ran at around min 1.5ghz on alot of games they played with no problem
Do you have a more intensive mame game i can try out on the eee pc to benchmark it abit better?
Only downside to installing this into a cabinet is that you need to remove a magnet out of the case so the eee pc can start while the lid is closed.
as for starting the eee pc without wiring in a cable internally inside id use a small solonoid that can just push the button on and off it would be very simple
Another option is to wire in a hall effect switch so you just have to swipe you hand under the lip of the lid to start the pc aswell

If there is anything else u want tested just ask im happy too