Sad day. Sad thread. The X2 release will not be the same without ba_midi around. :)
Bit, I enjoyed your story. Generous man, indeed. I mean that's going above and beyond to reach out to somebody you know maybe just a little bit, a distant electronic pen pal of sorts. Says alot about the type of person he was.
About his site... sure would be nice to not have it just disappear into nothingness, assuming it may be just an overlooked artifact of somebody's life. It looks like ba-midi.com is registered via tucows.com through Jan 2013, and tracert on his IP goes through yourhostingaccount.com, which is also registered to tucows... So maybe the hosting bill was payed through the end of the year along with the registration.