The same issues were widespread when Win 95/2000/XP was introduced.
Over 90 percent of manufacturers had no interest in revisiting 'older' hardware for driver updates.
....."Please trash your current thingie and buy a new one (from us if you please) when upgrading your OS to the next generation."
For those with legacy devices considering a Vista PC, see this
site.
For anyone upgrading an existing system,
this site will check your attached hardware for compatibility.
Good Luck!