So much this! And faster. Why does single stepping take visible seconds and cause visible redraws of all the panes in the debugger? WTF? It wasn’t this slow when we had 25MHz CPUs running GUIs, why is it so slow now? (Yeah, systems are more complicated, but they’re also a hell of a lot faster and have more CPUs to distribute the work around!)
Also could we get documentation on things like Instruments? I don’t just mean stuff like “this button opens the whatever pane.” I mean how do you use it and what does its output mean? I’ve rarely seen such useless documentation. (Well, Unix man pages, I guess.)
A lot less buggy.
Sheesh.