I'm still looking for a solution (some help) on this please. I suspect it has to do with the mame2003 configuration file. The output of dev is below, and the output is below (with mouse0 being the TurboTwist2):
drwxr-xr-x    4 root     root         380 Jan  1  1980 .
drwxr-xr-x   12 root     root        3.0K Mar 27 19:06 ..
drwxr-xr-x    2 root     root         220 Jan  1  1980 by-id
drwxr-xr-x    2 root     root         220 Jan  1  1980 by-path
crw-rw----    1 root     input      13,  64 Jan  1  1980 event0
crw-rw----    1 root     input      13,  65 Jan  1  1980 event1
crw-rw----    1 root     input      13,  66 Jan  1  1980 event2
crw-rw----    1 root     input      13,  67 Jan  1  1980 event3
crw-rw----    1 root     input      13,  68 Jan  1  1980 event4
crw-rw----    1 root     input      13,  69 Jan  1  1980 event5
crw-rw----    1 root     input      13,  70 Jan  1  1980 event6
crw-rw----    1 root     input      13,  71 Jan  1  1980 event7
crw-rw----    1 root     input      13,  72 Jan  1  1980 event8
crw-rw-r--    1 root     input      13,   0 Jan  1  1980 js0
crw-rw-r--    1 root     input      13,   1 Jan  1  1980 js1
crw-rw----    1 root     input      13,  63 Jan  1  1980 mice
crw-rw----    1 root     input      13,  32 Jan  1  1980 mouse0
crw-rw----    1 root     input      13,  33 Jan  1  1980 mouse1
crw-rw----    1 root     input      13,  34 Jan  1  1980 mouse2
Thanks,
~Mark