This post could have been good on a Friday, but I found today Monday... Shea has released a Preview that you can easily install on your Raspbian.
Remember that PiMAME will allow you to install a bunch of emulators on an easy way through a SD image or a script.
Advancemame 1.2 y mame4all
DGEN sdl 1.32
gngeo 0.8 y pifba (BIOS)
For the script installation, simply type the following and enjoy in your Raspbian distribution
wget -O - http://pimame.org/installer.sh | bash
Mr. Silverman need to know how this new version behaves, so if you test, contact with him to tell it's amazing.