midex 3 with OS X (in my case Leopard 10.5.2)

Curioser and curioser…

Now I install 10.6.3 - and guess what? After installation of the latest Mac driver from the Steinberg website is installed (which causes an error message halfway through of a seemingly unrelated CardBus kext in System Extensions, but still goes to completion with an ‘Installation Successful’ message), the Midex 3 lights up but its icon is NOWHERE to be seen in AMS Midi Studio window, not even after reboot.

So, my findings so far:
10.5.2 - driver doesn’t work at all
10.6.1 - installs correctly & works with M3 icon in AMS
10.6.2 - ditto
10.6.3 - unit lights up but is not fully recognised

Is this why Steinberg dropped support of Midex 3/8 like a hot potato?

Because they know their driver is flawed and they therefore want to immediately relinquish all responsibility for it?
Is it a case of the product (in this case a software driver) being not fit for its intended purpose??
Is there any legal comeback for us users because they (Steinberg) state erroneously on their website this driver works with Mac OS X 10.5 thru to 10.8??

Please, someone out there with a Midex 3 or 8 (or access to one to borrow for just a short time) and who has 10.7 Lion or 10.8 Mountain Lion - can you confirm or deny that this unit works with your OS.