I was pleasantly surprised to read about this this morning so i headed over to access web site to see what i could see. oh look! movies about cool stuff in os3..oh well ill wait till it comes out in ages..but wait there it is in downloads
just installed os3 on "original" TI desktop and the new features are all there. works fine so far. seemed to install a bit faster than 2.7.5 but still no option for "drivers only" or " dont update TI if current" if you had to move your USB port and dont want to wait for the TI firmware update.
and i did not get a reocurrence of the problem in cubase where the "audiodriver failed" on the TI control which it seems i just fixed a few days ago when i installed 2.7.5 lol
good thing apple didnt make this synth, or they would have locked out the extra features of the new OS on the old synth