No, I mean specifically using Raspberry Pi (RP) as your OS/
Most every MAME cab I have worked on was using Windows XP or a Linux distro on the back end.
A few months back folks around here started trying to use RP for everything, and it died really fast as it is a PITA to get to work.
Meanwhile I am just sitting here with Windows 7, and about 20 GB of Roms streaming to my TV, had it all up and running in about 30 minutes.