there are already compatibility lists for the PSP, dreamcast and n64 systems, but:
they are often pointless since those systems see active development so anything (not) working today will/won't be working tomorrow.
without someone to babysit the google documents (like i, and previously
@herb_fargus do for the mame lists) they quickly descend into gibberish. whatever cells you don't make read-only WILL turn into garbage on a bimonthly basis. hence: all the psp, dreamcast and n64 sheets are almost entirely garbage now.
so, good luck to anyone who takes it on ;)