>support for force feedback Actually, there is some hope on that front. Howard Casto (HowardC) wrote a program called Mame Hooker that can be used to interpret MAME's output system in order to do some fun things.
There aren't many drivers that send FFB data to the output system so right now it's pretty limited. Howard worked on a few drivers this spring but has taken a break to work on other projects. So hopefully he returns at some point to complete additional drivers or someone else takes an interest in it.
The output system isn't particularly exciting unless it's interpreted, and the only interpreter that implements FFB right now is Mame Hooker which is Windows only and not part of the official build. That might explain why there isn't a ton of interest to implement new outputs in the drivers.