I don't know if it is launch-day blues, but on new MacBook Pro, the demo notebooks are sluggish, and some of the examples throw errors.
And it uses "CTRL" to mean "Command", throughout.
Tantalizing, but not a perfect first-impression, and it reinforces the feeling the I'd be let down if I stray from the path of polished examples and into real work.
...and it seems I corrupted the master copy of the "Things to Try" notebook -- clicking on the link again, from the home page, launches the corrupted notebook I made earlier.
I do. I use it as an advanced calculator for doing complex mathematics too hard to deal with by hand. To answer what industries, I do everything from semiconductor device physics to databases and machine learning.
You can see it rendering its buttons and menus.. slowly. Typing may take 10 seconds to respond. It is completely unoptimized for ARM, or at least was when I tried it.
It's true it can't use libraries like the Intel Performance Primitives on ARM, but that's not why the UI is slow on RPi. RPi's UI is slow because all graphics-intensive GUI stuff on RPi is slow. Firefox is unusable, for example.