seems to be working on...
... my gf's mac.
I sold my macbook a few months back after realising I didn't like it much, after decades of Linux & Windows usage, it was a pain in the arse to use.
Anyway, the gf installed Lion today and I was faced with what I considered to be rhetorical questions - silly me!
"Why is it doing this?" "Where's my xyz gone?"
Anyhoo - it installed without a hitch after eating our broadband for 3 hours - and ... da da duuuum, £25 spent on, I'm not sure what really?
Ah yes, she can no longer run mac the ripper, adobe acrobat reader doesn't work, and a few other apps she rarely uses have a 'stop' style line across the icon.
This is the Apple way - they don't do backwards compatibility well, as they want you to buy new hardware every few years.
That sucks, but that's just my opinion - I tried Mac, didn't get along with it - any OS upgrade which breaks software just a few years old, is ... wrong.
Microsoft, love them or hate them, have legacy support that goes back a decade. That's how it should be.
Linux, bless it's little tux, goes one better - it'll run on damn near anything made in the last 20 years.
And that's the reality - Mac OS really isn't all that - it's a marketing success above anything else. Easy to use, but inevitably... it's just another OS, running on pretty hardware that costs a whole lot more than most people have to spend.